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Exponential growth

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into two daughter organisms, who then each split to form four, who split to form eight, and so on. Because exponential growth indicates constant growth rate, it is frequently assumed that exponentially growing cells are at a steady-state. However, cells can grow exponentially at a constant rate while
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will require 40 seconds. This kind of algorithm typically becomes unusable at very small problem sizes, often between 30 and 100 items (most computer algorithms need to be able to solve much larger problems, up to tens of thousands or even millions of items in reasonable times, something that would
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is often used to illustrate it. One bacterium splits itself into two, each of which splits itself resulting in four, then eight, 16, 32, and so on. The amount of increase keeps increasing because it is proportional to the ever-increasing number of bacteria. Growth like this is observed in real-life
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of the uranium), the production rate of neutrons and induced uranium fissions increases exponentially, in an uncontrolled reaction. "Due to the exponential rate of increase, at any point in the chain reaction 99% of the energy will have been released in the last 4.6 generations. It is a reasonable
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French children are offered a riddle, which appears to be an aspect of exponential growth: "the apparent suddenness with which an exponentially growing quantity approaches a fixed limit". The riddle imagines a water lily plant growing in a pond. The plant doubles in size every day and, if left
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alone, it would smother the pond in 30 days killing all the other living things in the water. Day after day, the plant's growth is small, so it is decided that it won't be a concern until it covers half of the pond. Which day will that be? The 29th day, leaving only one day to save the pond.
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In reality, initial exponential growth is often not sustained forever. After some period, it will be slowed by external or environmental factors. For example, population growth may reach an upper limit due to resource limitations. In 1845, the Belgian mathematician
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Exponential growth models of physical phenomena only apply within limited regions, as unbounded growth is not physically realistic. Although growth may initially be exponential, the modelled phenomena will eventually enter a region in which previously ignored
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it grows at 30% of its size. If an exponentially growing function grows at a rate that is 3 times is present size, then it always grows at a rate that is 3 times its present size. When it is 10 times as big as it is now, it will grow 10 times as fast.
1166: 1954: 1454: 877: 616:. (Under exponential growth, there are no singularities. The singularity here is a metaphor, meant to convey an unimaginable future. The link of this hypothetical concept with exponential growth is most vocally made by futurist 627:, computer algorithms of exponential complexity require an exponentially increasing amount of resources (e.g. time, computer memory) for only a constant increase in problem size. So for an algorithm of time complexity 790: 3018:
Studies show that human beings have difficulty understanding exponential growth. Exponential growth bias is the tendency to underestimate compound growth processes. This bias can have financial implications as well.
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was uploaded to YouTube on 15 July 2012, reaching hundreds of thousands of viewers on the first day, millions on the twentieth day, and was cumulatively viewed by hundreds of millions in less than two months.
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do not help the situation much because doubling processor speed merely increases the feasible problem size by a constant. E.g. if a slow processor can solve problems of size
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Terms like "exponential growth" are sometimes incorrectly interpreted as "rapid growth". Indeed, something that grows exponentially can in fact be growing slowly at first.
2064: 702:, one person can forward the same content to many people simultaneously, who then spread it to even more people, and so on, causing rapid spread. For example, the video 2483: 334:. In real cases, initial exponential growth often does not last forever, instead slowing down eventually due to upper limits caused by external factors and turning into 993: 146: 2942: 676:. So exponentially complex algorithms are most often impractical, and the search for more efficient algorithms is one of the central goals of computer science today. 429:
will increase exponentially until an essential nutrient is exhausted, so there is no more of that nutrient for more organisms to grow. Typically the first organism
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electrons also are accelerated, creating larger numbers of free electrons. The resulting exponential growth of electrons and ions may rapidly lead to complete
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Growth rates may also be faster than exponential. In the most extreme case, when growth increases without bound in finite time, it is called
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approximation to think of the first 53 generations as a latency period leading up to the actual explosion, which only takes 3–4 generations."
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If a species of bacteria doubles every ten minutes, starting out with only one bacterium, how many bacteria would be present after one hour?
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There is a whole hierarchy of conceivable growth rates that are slower than exponential and faster than linear (in the long run). See
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in the last formula is not a numerical division either, but converts a dimensionless number to the correct quantity including unit.
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model) or other underlying assumptions of the exponential growth model, such as continuity or instantaneous feedback, break down.
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also show this type of growth resulting in high profits for a few initial investors and losses among great numbers of investors.
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to its present size. For example, when it is 3 times as big as it is now, it will be growing 3 times as fast as it is now.
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Graphs comparing doubling times and half lives of exponential growths (bold lines) and decay (faint lines), and their 70/
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Thus the law of exponential growth can be written in different but mathematically equivalent forms, by using a different
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which can be expressed as the product of a number of units and a unit of time) represent the same growth rate, with
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If the constant of proportionality is negative, then the quantity decreases over time, and is said to be undergoing
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Not all cases of growth at an always increasing rate are instances of exponential growth. For example the function
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In the long run, exponential growth of any kind will overtake linear growth of any kind (that is the basis of the
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of time, that is, the variable representing time is the exponent (in contrast to other types of growth, such as
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The graph illustrates how exponential growth (green) surpasses both linear (red) and cubic (blue) growth.
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goes on in discrete intervals (that is, at integer times 0, 1, 2, 3, ...), is
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Of Literature and Knowledge: Explorations in Narrative Thought Experiments, Evolution, and Game Theory
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According to legend, vizier Sissa Ben Dahir presented an Indian King Sharim with a beautiful handmade
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grows at an ever increasing rate, but is very remote from growing exponentially. For example, when
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A popular approximated method for calculating the doubling time from the growth rate is the
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Meadows, Donella H., Dennis L. Meadows, Jørgen Randers, and William W. Behrens III. (1972)
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The J-shaped exponential growth (left, blue) and the S-shaped logistic growth (right, red).
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Stango, Victor; Zinman, Jonathan (2009). "Exponential Growth Bias and Household Finance".
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th square demanded over a million grains on the 21st square, more than a million million (
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activity or phenomena, such as the spread of virus infection, the growth of debt due to
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After one hour, or six ten-minute intervals, there would be sixty-four bacteria.
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at a constant interest rate provides exponential growth of the capital. See also
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On the Possible Reasons for the Hyperexponential Growth of the Earth Population
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to the quantity itself. Often the independent variable is time. Described as a
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be physically impossible with an exponential algorithm). Also, the effects of
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Economic growth is expressed in percentage terms, implying exponential growth.
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for the (dimensionless) number of units of time rather than the time itself,
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can result in the exponential growth of the amplified signal, although
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Growth in a Finite World – Sustainability and the Exponential Function
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first proposed a mathematical model of growth like this, called the "
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This allows an exponentially growing variable to be modeled with a
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the growth rate is given by the dimensionless positive number 
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of neutron absorption exceeds the probability of neutron escape (a
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by adjacent uranium atoms, causing them to fission in turn. If the
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Blueprint to a Billion: 7 Essentials to Achieve Exponential Growth
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is available. Each infected person can infect multiple new people.
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Degree of a polynomial § Computed from the function values
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Growth of quantities at rate proportional to the current amount
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Bacteria exhibit exponential growth under optimal conditions.
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Functions and Change: A Modeling Approach to College Algebra
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Population Ecology: An Introduction to Computer Simulations
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The differential equation is solved by direct integration:
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is simply the number of units of time. Using the notation
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that it frees up additional electrons as it collides with
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becomes sufficiently accelerated by an externally applied
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within the linear range of electrical or electroacoustic
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Parameters (negative in the case of exponential decay):
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Meadows, Donella. Randers, Jorgen. Meadows, Dennis.
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requires 10 seconds to complete, and a problem of size
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Dr. Albert Bartlett: Arithmetic, Population and Energy
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of definition with equal intervals, it is also called
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Mathematical Modeling of Social and Economic Dynamics
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or 2), the growth rate is given by the non-zero time
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The most common forms are the following: 64:occurs when the a quantity grows at a rate 3879: 3865: 3682: 3668: 3423:. Houghton Mifflin Harcourt. p. 398. 3013: 3443: 3355: 3288: 2992:factors become significant (leading to a 2643: 2561: 2108:exhibits exponential growth according to 1791:is the time it takes to grow by a factor 1154: 981: 403:Learn how and when to remove this message 3530:. Chelsea Green Publishing. p. 21. 3528:The Limits to Growth: The 30-Year Update 2982: 2955: 2297: 794: 714: 348: 31: 3525: 3500: 3397: 3022: 2778:In the above differential equation, if 939:{\displaystyle x(t)=a\cdot b^{t/\tau }} 177:it grows at 3 times its size, but when 14: 4239: 3860: 3663: 3450:. John Wiley & Sons. p. 37. 3345: 3343: 3255:; van Oudenaarden, Alexander (2014). 3046: 2803: 1818:(a dimensionless number) in a period 680: 321:at time 0. The growth of a bacterial 3311: 3213: 2179:over time, as can be seen by taking 385:adding citations to reliable sources 356: 299:{\displaystyle x_{t}=x_{0}(1+r)^{t}} 3689: 3503:Capitalism: as if the world matters 3371:Karine Nahon; Jeff Hemsley (2013). 2796:variation of this growth model see 2403:{\displaystyle {\frac {dx}{dt}}=kx} 2165:{\displaystyle x(t)=x_{0}(1+r)^{t}} 599: 211:instead. In the case of a discrete 24: 3656:— streaming video and audio 58 min 3589:Capitalism as if the world matters 3340: 2951: 2838: 2100:Reformulation as log-linear growth 25: 4278: 4153:Indefinite and fictitious numbers 3886: 3641: 3505:. London: Earthscan. p. 49. 2769:{\displaystyle x(t)=x_{0}e^{kt}.} 1991:is the unit of time the quotient 1001:is a positive growth factor, and 223:since the function values form a 3561:Chelsea Green Publishing, 2004. 3485:10.1111/j.1540-6261.2009.01518.x 2785:, then the quantity experiences 2418:is proportional to the value of 2353:{\displaystyle x(t)=x_{0}e^{kt}} 2172:, then the log (to any base) of 2071: 710: 361: 4247:Ordinary differential equations 3464: 3437: 3335:Crauder, Evans & Noell 2008 1809:is the time it takes to double. 1738:expresses the initial quantity 625:computational complexity theory 482:of the dielectric media. These 372:needs additional citations for 3577:. New York: University Books. 3410: 3391: 3364: 3305: 3226: 3207: 2931: 2919: 2835: 2734: 2728: 2672: 2666: 2598: 2592: 2459: 2453: 2321: 2315: 2254: 2242: 2205: 2199: 2153: 2140: 2124: 2118: 1773:continuously compounded return 1559: 1553: 1416: 1405: 1397: 1386: 1369: 1358: 1334: 1323: 1271: 1265: 1145: 1139: 1072: 1060: 1043: 1031: 972: 966: 906: 900: 886:depends exponentially on time 287: 274: 122: 116: 13: 1: 4068:Conway chained arrow notation 3831:Conway chained arrow notation 3200: 3062: 3057:second half of the chessboard 1015:to increase by one factor of 3273:10.1016/j.celrep.2014.03.057 3214:Suri, Manil (4 March 2019). 3029:Wheat and chessboard problem 2362:linear differential equation 2059:{\displaystyle T\simeq 70/r} 562: 7: 3149:Law of accelerating returns 3071: 1188:has exponential growth. If 686:Internet contents, such as 344: 10: 4283: 4163:Largest known prime number 3783:Inverse for right argument 3548: 3501:Porritt, Jonathan (2005). 3154:List of exponential topics 3026: 2998: 2963: 2478:{\displaystyle x(0)=x_{0}} 572: 558:of the signal over others. 453: 415: 4216: 4148:Extended real number line 4128: 4081: 4063:Knuth's up-arrow notation 4050: 4041: 3894: 3841:Knuth's up-arrow notation 3818: 3782: 3743: 3697: 3526:Meadows, Donella (2004). 3316:. Nuclear Weapons Archive 2816:growth, that is, for all 988:{\displaystyle x(0)=a\,,} 614:technological singularity 95:). Exponential growth is 4073:Steinhaus–Moser notation 3846:Steinhaus–Moser notation 3444:Bernstein, Ruth (2003). 2973:Pierre François Verhulst 1524:. For any non-zero time 952:is the initial value of 56: Exponential growth 3605:. New York: Routledge. 3169:Malthusian growth model 3114:Combinatorial explosion 3014:Exponential growth bias 3009:Apparent infection rate 2090:approximations. In the 1011:—the time required for 631:, if a problem of size 608:of computers. See also 554:effects may favor some 519:, each of which can be 141:{\textstyle f(x)=x^{3}} 4116:Fast-growing hierarchy 3473:The Journal of Finance 3377:. Polity. p. 16. 3005:Malthusian catastrophe 2961: 2944:, the diagonal of the 2938: 2937:{\displaystyle A(n,n)} 2882: 2810:Malthusian catastrophe 2770: 2712: 2479: 2404: 2354: 2264: 2166: 2060: 1950: 1723: 1483:and an amount of time 1450: 1343: 1162: 989: 940: 879: 873: 792: 786: 494:Nuclear chain reaction 354: 300: 197: 171: 142: 58: 4262:Mathematical modeling 4257:Temporal exponentials 4173:Long and short scales 4111:Grzegorczyk hierarchy 3836:Grzegorczyk hierarchy 3559:: The 30-Year Update. 3144:Information explosion 3119:Exponential algorithm 3084:Albert Allen Bartlett 2999:Further information: 2983:Limitations of models 2959: 2939: 2883: 2771: 2713: 2480: 2405: 2355: 2298:Differential equation 2265: 2167: 2061: 1951: 1812:The percent increase 1724: 1512:not equal to 1 (e.g. 1451: 1344: 1232:The question implies 1163: 990: 941: 874: 798: 787: 718: 556:component frequencies 437:A virus (for example 352: 301: 225:geometric progression 198: 172: 143: 66:directly proportional 35: 3629:Tsirel, S. V. 2004. 3574:The Limits to Growth 3557:The Limits to Growth 3023:Rice on a chessboard 2913: 2824: 2722: 2492: 2447: 2368: 2309: 2304:exponential function 2187: 2112: 2036: 1862: 1547: 1477:non-negative number 1352: 1259: 1025: 960: 894: 804: 724: 496:(the concept behind 488:dielectric breakdown 381:improve this article 330:, and the spread of 248: 181: 152: 110: 89:exponential function 4188:Orders of magnitude 4058:Scientific notation 3810:Super-logarithm (4) 3769:Root extraction (3) 3337:, pp. 314–315. 3253:Airoldi, Edoardo M. 3134:Hausdorff dimension 3094:Asymptotic notation 3079:Accelerating change 2642: 2602: 2015:can be replaced by 946:where the constant 719:exponential growth: 460:Avalanche breakdown 234:at the growth rate 41: Linear growth 4106:Ackermann function 3826:Ackermann function 3720:Exponentiation (3) 3715:Multiplication (2) 3619:, Wiley Dec 2005, 3615:Thomson, David G. 3591:, Earthscan 2005. 3220:The New York Times 3159:Logarithmic growth 2962: 2946:Ackermann function 2934: 2878: 2842: 2804:Other growth rates 2766: 2708: 2706: 2628: 2572: 2475: 2400: 2350: 2260: 2162: 2056: 1946: 1846:, and for a given 1719: 1446: 1339: 1158: 985: 936: 880: 869: 867: 799:exponential decay: 793: 782: 780: 681:Internet phenomena 515:produces multiple 355: 296: 193: 167: 138: 101:logarithmic growth 62:Exponential growth 59: 4234: 4233: 4124: 4123: 3854: 3853: 3747:for left argument 3457:978-0-470-85148-7 3430:978-1-111-78502-4 3384:978-0-7456-7129-1 3312:Sublette, Carey. 3164:Logistic function 3139:Hyperbolic growth 2990:negative feedback 2899:hyperbolic growth 2870: 2827: 2812:) as well as any 2798:logistic function 2787:exponential decay 2686: 2616: 2549: 2517: 2389: 1944: 1933: 1900: 1879: 1777:force of interest 1695: 1491:physical quantity 1414: 1395: 1367: 1332: 1223:exponential decay 846: 672:in the same time 579:Compound interest 544:Positive feedback 466:material. A free 413: 412: 405: 328:compound interest 209:exponential decay 196:{\textstyle x=10} 170:{\textstyle x=1,} 16:(Redirected from 4274: 4048: 4047: 3978:Eddington number 3923:Hundred thousand 3881: 3874: 3867: 3858: 3857: 3819:Related articles 3684: 3677: 3670: 3661: 3660: 3601:Swirski, Peter. 3542: 3541: 3523: 3517: 3516: 3498: 3489: 3488: 3479:(6): 2807–2849. 3468: 3462: 3461: 3441: 3435: 3434: 3414: 3408: 3407: 3398:YouTube (2012). 3395: 3389: 3388: 3368: 3362: 3361: 3359: 3347: 3338: 3332: 3326: 3325: 3323: 3321: 3309: 3303: 3302: 3292: 3248: 3242: 3241: 3230: 3224: 3223: 3211: 3189:Quadratic growth 3099:Bacterial growth 3048: 3044: 3040: 3001:Limits to Growth 2943: 2941: 2940: 2935: 2887: 2885: 2884: 2879: 2871: 2869: 2868: 2867: 2854: 2853: 2844: 2841: 2819: 2784: 2775: 2773: 2772: 2767: 2762: 2761: 2749: 2748: 2717: 2715: 2714: 2709: 2707: 2687: 2685: 2684: 2675: 2661: 2641: 2636: 2617: 2612: 2604: 2601: 2587: 2586: 2585: 2550: 2545: 2537: 2518: 2516: 2508: 2500: 2484: 2482: 2481: 2476: 2474: 2473: 2439: 2428: 2417: 2413: 2409: 2407: 2406: 2401: 2390: 2388: 2380: 2372: 2359: 2357: 2356: 2351: 2349: 2348: 2336: 2335: 2293: 2289: 2282:linearly regress 2279: 2274:log-linear model 2269: 2267: 2266: 2261: 2226: 2225: 2175: 2171: 2169: 2168: 2163: 2161: 2160: 2139: 2138: 2107: 2075: 2065: 2063: 2062: 2057: 2052: 2024: 2018: 2014: 2004: 2000: 1990: 1982:being infinite. 1981: 1975: 1969: 1962: 1955: 1953: 1952: 1947: 1945: 1940: 1939: 1935: 1934: 1926: 1906: 1901: 1896: 1885: 1880: 1872: 1857: 1851: 1845: 1839: 1833: 1823: 1817: 1770: 1760: 1744: 1737: 1728: 1726: 1725: 1720: 1715: 1714: 1710: 1701: 1697: 1696: 1688: 1671: 1670: 1658: 1657: 1653: 1637: 1636: 1624: 1623: 1619: 1603: 1602: 1590: 1589: 1574: 1573: 1535: 1529: 1523: 1511: 1506:. For any fixed 1505: 1499:proportional to 1498: 1488: 1482: 1472: 1455: 1453: 1452: 1447: 1439: 1438: 1420: 1419: 1415: 1412: 1404: 1396: 1393: 1368: 1365: 1348: 1346: 1345: 1340: 1338: 1337: 1333: 1330: 1322: 1300: 1299: 1295: 1252: 1245: 1238: 1220: 1216: 1208: 1201: 1194: 1187: 1183: 1176: 1167: 1165: 1164: 1159: 1132: 1131: 1127: 1111: 1110: 1106: 1084: 1083: 1079: 1020: 1014: 1006: 1000: 994: 992: 991: 986: 955: 951: 945: 943: 942: 937: 935: 934: 930: 889: 885: 878: 876: 875: 870: 868: 847: 839: 791: 789: 788: 783: 781: 675: 671: 664: 660: 651: 644: 637: 630: 606:Processing power 600:Computer science 498:nuclear reactors 490:of the material. 472:electrical field 408: 401: 397: 394: 388: 365: 357: 320: 317:is the value of 316: 305: 303: 302: 297: 295: 294: 273: 272: 260: 259: 241: 237: 233: 217:geometric growth 202: 200: 199: 194: 176: 174: 173: 168: 147: 145: 144: 139: 137: 136: 93:quadratic growth 55: 46: 40: 21: 18:Geometric growth 4282: 4281: 4277: 4276: 4275: 4273: 4272: 4271: 4237: 4236: 4235: 4230: 4212: 4168:List of numbers 4136: 4134: 4132: 4130: 4120: 4077: 4043: 4037: 4008:Graham's number 3998:Skewes's number 3900: 3898: 3896: 3890: 3885: 3855: 3850: 3814: 3795:Subtraction (1) 3790:Predecessor (0) 3778: 3759:Subtraction (1) 3754:Predecessor (0) 3739: 3693: 3691:Hyperoperations 3688: 3644: 3551: 3546: 3545: 3538: 3524: 3520: 3513: 3499: 3492: 3469: 3465: 3458: 3442: 3438: 3431: 3415: 3411: 3396: 3392: 3385: 3369: 3365: 3348: 3341: 3333: 3329: 3319: 3317: 3310: 3306: 3249: 3245: 3240:. 11 July 2014. 3232: 3231: 3227: 3212: 3208: 3203: 3198: 3074: 3065: 3042: 3038: 3031: 3025: 3016: 3011: 2994:logistic growth 2985: 2977:logistic growth 2968: 2954: 2952:Logistic growth 2914: 2911: 2910: 2903:hyperoperations 2863: 2859: 2855: 2849: 2845: 2843: 2831: 2825: 2822: 2821: 2817: 2806: 2779: 2754: 2750: 2744: 2740: 2723: 2720: 2719: 2705: 2704: 2688: 2680: 2676: 2662: 2660: 2651: 2650: 2637: 2632: 2618: 2605: 2603: 2588: 2581: 2577: 2576: 2569: 2568: 2551: 2538: 2536: 2533: 2532: 2519: 2509: 2501: 2499: 2495: 2493: 2490: 2489: 2469: 2465: 2448: 2445: 2444: 2430: 2419: 2415: 2411: 2381: 2373: 2371: 2369: 2366: 2365: 2341: 2337: 2331: 2327: 2310: 2307: 2306: 2300: 2291: 2284: 2277: 2221: 2217: 2188: 2185: 2184: 2173: 2156: 2152: 2134: 2130: 2113: 2110: 2109: 2105: 2102: 2097: 2096: 2095: 2081: 2076: 2048: 2037: 2034: 2033: 2020: 2016: 2006: 2002: 1992: 1986: 1977: 1971: 1964: 1963:corresponds to 1957: 1925: 1918: 1914: 1907: 1905: 1886: 1884: 1871: 1863: 1860: 1859: 1853: 1847: 1841: 1835: 1829: 1828:The quantities 1819: 1813: 1766: 1756: 1754:growth constant 1739: 1736: 1730: 1706: 1702: 1687: 1680: 1676: 1675: 1666: 1662: 1649: 1645: 1641: 1632: 1628: 1615: 1611: 1607: 1598: 1594: 1582: 1578: 1569: 1565: 1548: 1545: 1544: 1531: 1525: 1519: 1507: 1500: 1494: 1484: 1478: 1462: 1434: 1430: 1411: 1400: 1392: 1385: 1381: 1364: 1353: 1350: 1349: 1329: 1318: 1314: 1310: 1291: 1287: 1283: 1260: 1257: 1256: 1247: 1240: 1233: 1218: 1210: 1203: 1196: 1189: 1185: 1178: 1171: 1123: 1119: 1115: 1102: 1098: 1094: 1075: 1059: 1055: 1026: 1023: 1022: 1016: 1012: 1002: 996: 961: 958: 957: 953: 947: 926: 922: 918: 895: 892: 891: 887: 883: 866: 865: 855: 849: 848: 838: 831: 825: 824: 814: 807: 805: 802: 801: 800: 779: 778: 768: 762: 761: 751: 745: 744: 734: 727: 725: 722: 721: 720: 713: 700:social networks 683: 673: 666: 662: 658: 646: 639: 632: 628: 602: 589:Pyramid schemes 575: 565: 511:that undergoes 502:nuclear weapons 456: 418: 409: 398: 392: 389: 378: 366: 347: 336:logistic growth 318: 315: 309: 290: 286: 268: 264: 255: 251: 249: 246: 245: 239: 235: 231: 221:geometric decay 182: 179: 178: 153: 150: 149: 132: 128: 111: 108: 107: 57: 53: 51: 44: 42: 38: 28: 23: 22: 15: 12: 11: 5: 4280: 4270: 4269: 4264: 4259: 4254: 4249: 4232: 4231: 4229: 4228: 4223: 4217: 4214: 4213: 4211: 4210: 4205: 4200: 4198:Power of three 4195: 4190: 4185: 4180: 4178:Number systems 4175: 4170: 4165: 4160: 4155: 4150: 4145: 4139: 4137: 4133:(alphabetical 4126: 4125: 4122: 4121: 4119: 4118: 4113: 4108: 4103: 4102: 4101: 4096: 4089:Hyperoperation 4085: 4083: 4079: 4078: 4076: 4075: 4070: 4065: 4060: 4054: 4052: 4045: 4039: 4038: 4036: 4035: 4030: 4025: 4020: 4015: 4010: 4005: 4003:Moser's number 4000: 3995: 3990: 3988:Shannon number 3985: 3980: 3975: 3970: 3965: 3960: 3955: 3950: 3945: 3940: 3935: 3930: 3925: 3920: 3915: 3910: 3904: 3902: 3892: 3891: 3884: 3883: 3876: 3869: 3861: 3852: 3851: 3849: 3848: 3843: 3838: 3833: 3828: 3822: 3820: 3816: 3815: 3813: 3812: 3807: 3802: 3797: 3792: 3786: 3784: 3780: 3779: 3777: 3776: 3774:Super-root (4) 3771: 3766: 3761: 3756: 3750: 3748: 3741: 3740: 3738: 3737: 3732: 3727: 3722: 3717: 3712: 3707: 3701: 3699: 3695: 3694: 3687: 3686: 3679: 3672: 3664: 3658: 3657: 3651: 3650:— Presentation 3643: 3642:External links 3640: 3639: 3638: 3627: 3613: 3599: 3585: 3569: 3550: 3547: 3544: 3543: 3536: 3518: 3511: 3490: 3463: 3456: 3436: 3429: 3409: 3404:YouTube Trends 3390: 3383: 3363: 3339: 3327: 3304: 3267:(3): 705–714. 3243: 3225: 3205: 3204: 3202: 3199: 3197: 3196: 3191: 3186: 3181: 3176: 3171: 3166: 3161: 3156: 3151: 3146: 3141: 3136: 3131: 3126: 3121: 3116: 3111: 3106: 3104:Bounded growth 3101: 3096: 3091: 3086: 3081: 3075: 3073: 3070: 3064: 3061: 3041:grains on the 3024: 3021: 3015: 3012: 2984: 2981: 2966:Logistic curve 2964:Main article: 2953: 2950: 2933: 2930: 2927: 2924: 2921: 2918: 2877: 2874: 2866: 2862: 2858: 2852: 2848: 2840: 2837: 2834: 2830: 2805: 2802: 2765: 2760: 2757: 2753: 2747: 2743: 2739: 2736: 2733: 2730: 2727: 2703: 2700: 2697: 2694: 2691: 2689: 2683: 2679: 2674: 2671: 2668: 2665: 2659: 2656: 2653: 2652: 2649: 2646: 2640: 2635: 2631: 2627: 2624: 2621: 2619: 2615: 2611: 2608: 2600: 2597: 2594: 2591: 2584: 2580: 2575: 2571: 2570: 2567: 2564: 2560: 2557: 2554: 2552: 2548: 2544: 2541: 2535: 2534: 2531: 2528: 2525: 2522: 2520: 2515: 2512: 2507: 2504: 2498: 2497: 2472: 2468: 2464: 2461: 2458: 2455: 2452: 2399: 2396: 2393: 2387: 2384: 2379: 2376: 2360:satisfies the 2347: 2344: 2340: 2334: 2330: 2326: 2323: 2320: 2317: 2314: 2299: 2296: 2259: 2256: 2253: 2250: 2247: 2244: 2241: 2238: 2235: 2232: 2229: 2224: 2220: 2216: 2213: 2210: 2207: 2204: 2201: 2198: 2195: 2192: 2177:grows linearly 2159: 2155: 2151: 2148: 2145: 2142: 2137: 2133: 2129: 2126: 2123: 2120: 2117: 2104:If a variable 2101: 2098: 2078: 2077: 2070: 2069: 2068: 2055: 2051: 2047: 2044: 2041: 1943: 1938: 1932: 1929: 1924: 1921: 1917: 1913: 1910: 1904: 1899: 1895: 1892: 1889: 1883: 1878: 1875: 1870: 1867: 1826: 1825: 1810: 1798: 1785:e-folding time 1780: 1734: 1718: 1713: 1709: 1705: 1700: 1694: 1691: 1686: 1683: 1679: 1674: 1669: 1665: 1661: 1656: 1652: 1648: 1644: 1640: 1635: 1631: 1627: 1622: 1618: 1614: 1610: 1606: 1601: 1597: 1593: 1588: 1585: 1581: 1577: 1572: 1568: 1564: 1561: 1558: 1555: 1552: 1445: 1442: 1437: 1433: 1429: 1426: 1423: 1418: 1410: 1407: 1403: 1399: 1391: 1388: 1384: 1380: 1377: 1374: 1371: 1363: 1360: 1357: 1336: 1328: 1325: 1321: 1317: 1313: 1309: 1306: 1303: 1298: 1294: 1290: 1286: 1282: 1279: 1276: 1273: 1270: 1267: 1264: 1157: 1153: 1150: 1147: 1144: 1141: 1138: 1135: 1130: 1126: 1122: 1118: 1114: 1109: 1105: 1101: 1097: 1093: 1090: 1087: 1082: 1078: 1074: 1071: 1068: 1065: 1062: 1058: 1054: 1051: 1048: 1045: 1042: 1039: 1036: 1033: 1030: 984: 980: 977: 974: 971: 968: 965: 933: 929: 925: 921: 917: 914: 911: 908: 905: 902: 899: 864: 861: 858: 856: 854: 851: 850: 845: 842: 837: 834: 832: 830: 827: 826: 823: 820: 817: 815: 813: 810: 809: 777: 774: 771: 769: 767: 764: 763: 760: 757: 754: 752: 750: 747: 746: 743: 740: 737: 735: 733: 730: 729: 712: 709: 708: 707: 688:internet memes 682: 679: 678: 677: 621: 601: 598: 597: 596: 586: 574: 571: 570: 569: 564: 561: 560: 559: 541: 491: 455: 452: 451: 450: 435: 423:microorganisms 421:The number of 417: 414: 411: 410: 369: 367: 360: 346: 343: 313: 293: 289: 285: 282: 279: 276: 271: 267: 263: 258: 254: 192: 189: 186: 166: 163: 160: 157: 135: 131: 127: 124: 121: 118: 115: 75:(that is, the 73:rate of change 52: 43: 37: 26: 9: 6: 4: 3: 2: 4279: 4268: 4267:Growth curves 4265: 4263: 4260: 4258: 4255: 4253: 4250: 4248: 4245: 4244: 4242: 4227: 4224: 4222: 4219: 4218: 4215: 4209: 4206: 4204: 4201: 4199: 4196: 4194: 4191: 4189: 4186: 4184: 4181: 4179: 4176: 4174: 4171: 4169: 4166: 4164: 4161: 4159: 4158:Infinitesimal 4156: 4154: 4151: 4149: 4146: 4144: 4141: 4140: 4138: 4127: 4117: 4114: 4112: 4109: 4107: 4104: 4100: 4097: 4095: 4092: 4091: 4090: 4087: 4086: 4084: 4080: 4074: 4071: 4069: 4066: 4064: 4061: 4059: 4056: 4055: 4053: 4049: 4046: 4040: 4034: 4031: 4029: 4028:Rayo's number 4026: 4024: 4021: 4019: 4016: 4014: 4011: 4009: 4006: 4004: 4001: 3999: 3996: 3994: 3991: 3989: 3986: 3984: 3981: 3979: 3976: 3974: 3971: 3969: 3966: 3964: 3961: 3959: 3956: 3954: 3951: 3949: 3946: 3944: 3941: 3939: 3936: 3934: 3931: 3929: 3926: 3924: 3921: 3919: 3916: 3914: 3911: 3909: 3906: 3905: 3903: 3893: 3889: 3888:Large numbers 3882: 3877: 3875: 3870: 3868: 3863: 3862: 3859: 3847: 3844: 3842: 3839: 3837: 3834: 3832: 3829: 3827: 3824: 3823: 3821: 3817: 3811: 3808: 3806: 3805:Logarithm (3) 3803: 3801: 3798: 3796: 3793: 3791: 3788: 3787: 3785: 3781: 3775: 3772: 3770: 3767: 3765: 3762: 3760: 3757: 3755: 3752: 3751: 3749: 3746: 3742: 3736: 3733: 3731: 3730:Pentation (5) 3728: 3726: 3725:Tetration (4) 3723: 3721: 3718: 3716: 3713: 3711: 3708: 3706: 3705:Successor (0) 3703: 3702: 3700: 3696: 3692: 3685: 3680: 3678: 3673: 3671: 3666: 3665: 3662: 3655: 3652: 3649: 3646: 3645: 3636: 3632: 3628: 3626: 3625:0-471-74747-5 3622: 3618: 3614: 3612: 3611:0-415-42060-1 3608: 3604: 3600: 3598: 3597:1-84407-192-8 3594: 3590: 3586: 3584: 3583:0-87663-165-0 3580: 3576: 3575: 3570: 3568: 3567:9781603581554 3564: 3560: 3558: 3553: 3552: 3539: 3537:9781603581554 3533: 3529: 3522: 3514: 3512:1-84407-192-8 3508: 3504: 3497: 3495: 3486: 3482: 3478: 3474: 3467: 3459: 3453: 3449: 3448: 3440: 3432: 3426: 3422: 3421: 3413: 3405: 3401: 3394: 3386: 3380: 3376: 3375: 3367: 3358: 3353: 3346: 3344: 3336: 3331: 3315: 3308: 3300: 3296: 3291: 3286: 3282: 3278: 3274: 3270: 3266: 3262: 3258: 3254: 3247: 3239: 3238:HowStuffWorks 3235: 3229: 3221: 3217: 3210: 3206: 3195: 3192: 3190: 3187: 3185: 3182: 3180: 3179:Menger sponge 3177: 3175: 3172: 3170: 3167: 3165: 3162: 3160: 3157: 3155: 3152: 3150: 3147: 3145: 3142: 3140: 3137: 3135: 3132: 3130: 3127: 3125: 3122: 3120: 3117: 3115: 3112: 3110: 3107: 3105: 3102: 3100: 3097: 3095: 3092: 3090: 3087: 3085: 3082: 3080: 3077: 3076: 3069: 3060: 3058: 3053: 3051: 3036: 3030: 3020: 3010: 3006: 3002: 2997: 2995: 2991: 2980: 2978: 2974: 2967: 2958: 2949: 2947: 2928: 2925: 2922: 2916: 2908: 2905:beginning at 2904: 2900: 2895: 2893: 2888: 2875: 2872: 2864: 2860: 2856: 2850: 2846: 2832: 2815: 2811: 2801: 2799: 2795: 2790: 2788: 2782: 2776: 2763: 2758: 2755: 2751: 2745: 2741: 2737: 2731: 2725: 2701: 2698: 2695: 2692: 2690: 2681: 2677: 2669: 2663: 2657: 2654: 2647: 2644: 2638: 2633: 2629: 2625: 2622: 2620: 2613: 2609: 2606: 2595: 2589: 2582: 2578: 2573: 2565: 2562: 2558: 2555: 2553: 2546: 2542: 2539: 2529: 2526: 2523: 2521: 2513: 2510: 2505: 2502: 2486: 2470: 2466: 2462: 2456: 2450: 2443: 2442:initial value 2437: 2433: 2426: 2422: 2397: 2394: 2391: 2385: 2382: 2377: 2374: 2363: 2345: 2342: 2338: 2332: 2328: 2324: 2318: 2312: 2305: 2295: 2288: 2283: 2275: 2270: 2257: 2251: 2248: 2245: 2239: 2236: 2233: 2230: 2227: 2222: 2218: 2214: 2211: 2208: 2202: 2196: 2193: 2190: 2182: 2178: 2157: 2149: 2146: 2143: 2135: 2131: 2127: 2121: 2115: 2093: 2089: 2085: 2080: 2074: 2067: 2053: 2049: 2045: 2042: 2039: 2031: 2026: 2023: 2013: 2009: 1999: 1995: 1989: 1983: 1980: 1974: 1967: 1960: 1941: 1936: 1930: 1927: 1922: 1919: 1915: 1911: 1908: 1902: 1897: 1893: 1890: 1887: 1881: 1876: 1873: 1868: 1865: 1856: 1850: 1844: 1838: 1832: 1822: 1816: 1811: 1808: 1805: 1804: 1803:doubling time 1799: 1796: 1795: 1790: 1787: 1786: 1781: 1778: 1774: 1769: 1764: 1759: 1755: 1751: 1750: 1749: 1746: 1742: 1733: 1716: 1711: 1707: 1703: 1698: 1692: 1689: 1684: 1681: 1677: 1672: 1667: 1663: 1659: 1654: 1650: 1646: 1642: 1638: 1633: 1629: 1625: 1620: 1616: 1612: 1608: 1604: 1599: 1595: 1591: 1586: 1583: 1579: 1575: 1570: 1566: 1562: 1556: 1550: 1542: 1537: 1534: 1528: 1522: 1517: 1516: 1510: 1504: 1497: 1492: 1487: 1481: 1476: 1475:dimensionless 1470: 1466: 1459: 1456: 1443: 1440: 1435: 1431: 1427: 1424: 1421: 1408: 1401: 1389: 1382: 1378: 1375: 1372: 1361: 1355: 1326: 1319: 1315: 1311: 1307: 1304: 1301: 1296: 1292: 1288: 1284: 1280: 1277: 1274: 1268: 1262: 1254: 1250: 1243: 1236: 1231: 1226: 1224: 1214: 1206: 1199: 1192: 1181: 1174: 1168: 1155: 1151: 1148: 1142: 1136: 1133: 1128: 1124: 1120: 1116: 1112: 1107: 1103: 1099: 1095: 1091: 1088: 1085: 1080: 1076: 1069: 1066: 1063: 1056: 1052: 1049: 1046: 1040: 1037: 1034: 1028: 1019: 1010: 1009:time constant 1005: 999: 995:the constant 982: 978: 975: 969: 963: 950: 931: 927: 923: 919: 915: 912: 909: 903: 897: 862: 859: 857: 852: 843: 840: 835: 833: 828: 821: 818: 816: 811: 797: 775: 772: 770: 765: 758: 755: 753: 748: 741: 738: 736: 731: 717: 711:Basic formula 705: 704:Gangnam Style 701: 697: 693: 689: 685: 684: 669: 656: 649: 642: 635: 626: 622: 619: 615: 611: 607: 604: 603: 594: 593:Ponzi schemes 590: 587: 584: 580: 577: 576: 567: 566: 557: 553: 549: 548:amplification 545: 542: 538: 534: 530: 526: 522: 518: 514: 510: 507: 503: 499: 495: 492: 489: 485: 481: 477: 473: 469: 465: 461: 458: 457: 448: 444: 440: 436: 432: 428: 424: 420: 419: 407: 404: 396: 386: 382: 376: 375: 370:This section 368: 364: 359: 358: 351: 342: 339: 337: 333: 329: 324: 312: 306: 291: 283: 280: 277: 269: 265: 261: 256: 252: 243: 228: 226: 222: 218: 214: 210: 205: 190: 187: 184: 164: 161: 158: 155: 133: 129: 125: 119: 113: 104: 102: 98: 94: 90: 86: 82: 78: 74: 69: 67: 63: 50: 34: 30: 19: 4252:Exponentials 4193:Power of two 4183:Number names 3918:Ten thousand 3800:Division (2) 3764:Division (2) 3735:Hexation (6) 3710:Addition (1) 3634: 3616: 3602: 3588: 3587:Porritt, J. 3572: 3555: 3527: 3521: 3502: 3476: 3472: 3466: 3446: 3439: 3419: 3412: 3403: 3393: 3373: 3366: 3330: 3318:. 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Each 468:electron 443:smallpox 439:COVID-19 345:Examples 85:function 4226:History 4044:methods 4018:SSCG(3) 4013:TREE(3) 3933:Billion 3928:Million 3908:Hundred 3745:Inverse 3698:Primary 3549:Sources 3290:4049626 3129:EXPTIME 2086:and 72/ 1970:and to 1761:is the 1217:, then 1211:0 < 1184:, then 1007:is the 573:Finance 531:of the 513:fission 509:nucleus 506:uranium 454:Physics 427:culture 416:Biology 4135:order) 3983:Googol 3623:  3609:  3595:  3581:  3565:  3534:  3509:  3454:  3427:  3381:  3320:26 May 3297:  3287:  3279:  3047:a.k.a. 3007:, and 2909:, and 2792:For a 2783:< 0 2429:, and 1956:where 1840:, and 1729:where 1215:< 1 1207:> 0 1200:> 1 1193:< 0 1182:> 1 1175:> 0 692:videos 431:splits 323:colony 308:where 213:domain 54:  47:  45:  39:  4221:Names 4023:BH(3) 3901:order 3352:arXiv 3055:The " 1852:also 1775:, or 1473:of a 1202:, or 533:shape 476:atoms 441:, or 425:in a 3621:ISBN 3607:ISBN 3593:ISBN 3579:ISBN 3563:ISBN 3532:ISBN 3507:ISBN 3452:ISBN 3425:ISBN 3379:ISBN 3322:2009 3295:PMID 3277:ISSN 2302:The 2285:log 1976:and 1800:The 1782:The 1752:The 1541:base 1501:log 1246:and 1221:has 1209:and 1195:and 1177:and 650:= 12 643:= 11 636:= 10 612:and 537:mass 535:and 500:and 3481:doi 3285:PMC 3269:doi 2979:". 2829:lim 2290:on 2237:log 2212:log 2191:log 1985:If 1968:= 0 1961:= 0 1931:100 1743:(0) 1693:100 1489:(a 1444:64. 1244:= 2 1237:= 1 1170:If 890:if 690:or 623:In 591:or 478:or 383:by 219:or 99:of 4243:: 3897:in 3633:. 3493:^ 3477:64 3475:. 3402:. 3342:^ 3293:. 3283:. 3275:. 3263:. 3259:. 3236:. 3218:. 3003:, 2948:. 2894:. 2876:0. 2820:: 2800:. 2789:. 2655:ln 2485:. 2364:: 2294:. 2066:. 2046:70 1909:ln 1888:ln 1834:, 1745:. 1536:. 1467:, 1409:10 1390:60 1327:10 1253:. 1239:, 1225:. 1021:: 956:, 822:24 620:.) 338:. 227:. 191:10 103:. 3880:e 3873:t 3866:v 3683:e 3676:t 3669:v 3540:. 3515:. 3487:. 3483:: 3460:. 3433:. 3406:. 3387:. 3360:. 3354:: 3324:. 3301:. 3271:: 3265:7 3222:. 3043:n 3039:2 2932:) 2929:n 2926:, 2923:n 2920:( 2917:A 2873:= 2865:t 2861:e 2857:a 2847:t 2833:t 2818:α 2781:k 2764:. 2759:t 2756:k 2752:e 2746:0 2742:x 2738:= 2735:) 2732:t 2729:( 2726:x 2702:. 2699:t 2696:k 2693:= 2682:0 2678:x 2673:) 2670:t 2667:( 2664:x 2648:t 2645:d 2639:t 2634:0 2626:k 2623:= 2614:x 2610:x 2607:d 2599:) 2596:t 2593:( 2590:x 2583:0 2579:x 2566:t 2563:d 2559:k 2556:= 2547:x 2543:x 2540:d 2530:x 2527:k 2524:= 2514:t 2511:d 2506:x 2503:d 2471:0 2467:x 2463:= 2460:) 2457:0 2454:( 2451:x 2438:) 2436:t 2434:( 2432:x 2427:) 2425:t 2423:( 2421:x 2416:t 2412:x 2398:x 2395:k 2392:= 2386:t 2383:d 2378:x 2375:d 2346:t 2343:k 2339:e 2333:0 2329:x 2325:= 2322:) 2319:t 2316:( 2313:x 2292:t 2287:x 2278:x 2258:. 2255:) 2252:r 2249:+ 2246:1 2243:( 2231:t 2228:+ 2223:0 2219:x 2209:= 2206:) 2203:t 2200:( 2197:x 2174:x 2158:t 2154:) 2150:r 2147:+ 2144:1 2141:( 2136:0 2132:x 2128:= 2125:) 2122:t 2119:( 2116:x 2106:x 2088:t 2084:t 2054:r 2050:/ 2040:T 2022:p 2017:t 2012:p 2010:/ 2008:t 2003:t 1998:p 1996:/ 1994:t 1988:p 1979:T 1973:τ 1966:r 1959:k 1942:p 1937:) 1928:r 1923:+ 1920:1 1916:( 1903:= 1898:T 1894:2 1882:= 1874:1 1869:= 1866:k 1855:r 1849:p 1843:T 1837:τ 1831:k 1824:. 1821:p 1815:r 1807:T 1797:. 1794:e 1789:τ 1779:. 1768:e 1758:k 1741:x 1735:0 1732:x 1717:, 1712:p 1708:/ 1704:t 1699:) 1690:r 1685:+ 1682:1 1678:( 1668:0 1664:x 1660:= 1655:T 1651:/ 1647:t 1643:2 1634:0 1630:x 1626:= 1617:/ 1613:t 1609:e 1600:0 1596:x 1592:= 1587:t 1584:k 1580:e 1571:0 1567:x 1563:= 1560:) 1557:t 1554:( 1551:x 1533:b 1527:τ 1521:τ 1515:e 1509:b 1503:b 1496:τ 1486:τ 1480:b 1471:) 1469:τ 1465:b 1463:( 1441:= 1436:6 1432:2 1425:1 1422:= 1417:) 1406:( 1402:/ 1398:) 1387:( 1383:2 1376:1 1373:= 1370:) 1362:1 1359:( 1356:x 1335:) 1324:( 1320:/ 1316:t 1312:2 1305:1 1302:= 1293:/ 1289:t 1285:b 1278:a 1275:= 1272:) 1269:t 1266:( 1263:x 1249:τ 1242:b 1235:a 1219:x 1213:b 1205:τ 1198:b 1191:τ 1186:x 1180:b 1173:τ 1156:. 1152:b 1146:) 1143:t 1140:( 1137:x 1134:= 1125:/ 1117:b 1104:/ 1100:t 1096:b 1089:a 1086:= 1077:/ 1073:) 1067:+ 1064:t 1061:( 1057:b 1050:a 1047:= 1044:) 1038:+ 1035:t 1032:( 1029:x 1018:b 1013:x 1004:τ 998:b 983:, 979:a 976:= 973:) 970:0 967:( 964:x 954:x 949:a 928:/ 924:t 920:b 913:a 910:= 907:) 904:t 901:( 898:x 888:t 884:x 863:5 860:= 853:r 844:2 841:1 836:= 829:b 819:= 812:a 776:5 773:= 766:r 759:2 756:= 749:b 742:3 739:= 732:a 674:t 668:x 663:t 659:x 648:x 641:x 634:x 629:2 585:. 406:) 400:( 395:) 391:( 377:. 319:x 314:0 311:x 292:t 288:) 284:r 281:+ 278:1 275:( 270:0 266:x 262:= 257:t 253:x 240:t 236:r 232:x 188:= 185:x 165:, 162:1 159:= 156:x 134:3 130:x 126:= 123:) 120:x 117:( 114:f 20:)

Index

Geometric growth

Cubic growth
directly proportional
rate of change
derivative
proportional
function
exponential function
quadratic growth
the inverse
logarithmic growth
exponential decay
domain
geometric progression
colony
compound interest
viral videos
logistic growth


verification
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microorganisms
culture
splits
COVID-19
smallpox

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