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Questions tagged [exponential]

Exponential can refer to a mathematics function, a curve / graph / dataset that follows the growth of that function, the exponential distribution in statistics, or a format to represent floats.

Exponential can refer to a mathematics function, a curve / graph / dataset that follows the growth of that function, the exponential distribution in statistics, or a format to represent floats.

Definitions from wikipedia:

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Changing the pitch of a imported signal logarithmically / exponentially over time

How can I change the pitch of an imported signal logarithmically / exponentially over time? Please note that the imported signals that will be used are not single frequencies so a simple sweep or a chirp command will not work since I will be…
Rick T
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Exponential values manipulation in perl

I have a select statement which return capacity as exponential value e.g. Capacity=5.4835615662E+003 in Perl code I am using a db2 database, and if I explicitly run a query in database it returns 5483.5615662 but when I use next select query…
Sharda Deshmukh
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exponential arrival and service rates

I have 2 agent types (say patients). each patient type will need a service after an exponential amount of time. We also have 2 different services A and B which have different service rates (exponential) for different patient types. So in total we…
paris
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Find an Inverse for the Exponential Integral function

I have a program where I have to find x. But I have to use the special function Ei - the exponential integral, and x is inside the argument of Ei. So Python isn't recognizing it. ei(mx) = te^r + ei(c) Here the RHS is a constant alongwith m. I…
Adeetya
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Arithmetic Mean with exponent of small numbers

Due to rounding error, cannot get mean of three numbers: a=-1.11e4 b=-1.12e4 c=-1.13e4 Mean=1/3 *[exp(a)+exp(b)+exp(c)] How to get the results in a log value?
ASE
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Exponential growth doubling processor speed

According to Wikipedia article on Exponential growth E.g. if a slow processor can solve problems of size x in time t, then a processor twice as fast could only solve problems of size x+constant in the same time t. My question is, how do we…
CatNip44
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String.format("%.5e",someDouble) results in a number with 13 decimal places & no "e+xx"

As the question suggests, I'm using String.format("%.5e",someDouble) because I want the following format #.#####E+#. I'm making a calculator for a tutorial. Let's say I'm typing in 333,333,333,333 * 333,333,333,333. The answer in the correct format…
user3376587
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Scipy optimize curve_fit not responding properly

from scipy import optimize import matplotlib.pyplot as plt x_data = np.linspace(0,11,12) y_data = np.array([0.02471114, 0.02057292, 0.01752668, 0.01494543, 0.01273249, 0.0110999 , 0.00946524, 0.00805622, 0.00670716, 0.00558925, 0.00465331,…
willard
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Why does my approximation of Exponential using Taylor Series expansion return "inf"?

This is my homework: I haven't tried to write the part of Natural Logarithm because I can't solve the part of Exponential. This is the the approximations of Exponential in C using Taylor Series expansion I wrote. However, it returns inf. What did I…
Jack Hsu
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How to do exponential growth in Python looped?

I was wondering if anyone could help me figure out how to do percentage addition in Python? I want to add exponential percentage growth to a given number i.e. 3% addition to 150 = 154.5, and then 3% to the new value but in a continuous string an x…
YLE yup
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Python exponential curve fitting

I have added excel plot from which I get the exponential equation, I am trying to curve fit this in Python. My fitted equation is not as close to the empirical data i have provided when i use it to predict the y data, the prediction gives f(-25)=…
martin
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How to format my String, that it looks clean?

I have this output and like you can see, because of the numbers on the left increasing, the whole string on the other side moves with it. What to I have to do? I don't know the format class well and when I looked it up, it made no sence to me! Can…
Mindmax
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Recursive function outputs a wrong value

In this code the output is 'r' instead of 'r0' Instead of doing the operations it outputs me the first 'r' (equals 100) and does not do the process. I´m trying to program an operation like (x_0 = x + (nt²/(2(x+(n(t-1)²/2(x+(n(t-3)²/2(x +…
Álvaro d'Ors
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Variable inside exponential integral function. Python can't calculate

My math question is here - https://math.stackexchange.com/questions/2063507/solving-this-integral-involving-ei-function This relates Population dynamics with t = time, N_t = population at time t, r = rate of growth and K = cqrrying capacity. My code…
Adeetya
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How do I solve this exponential equation on Excel Solver?

100e^0.25*y = 97.5 Solving for y Using Excel Solver I tried using empty column entry for y in 'By changing cells' and Set objective function as LHS of above equation (empty column entry in equation included) equal to value of 97.5 in solver. It…
user5498276
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