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Exponential

Tool to calculate the values of the exponential function exp(x) e(x) e^x and solve the calculations related to the function or the constant e=2.71818…

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Exponential -

Tag(s) : Functions

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Exponential

Exponential Calculator exp(n)=e^n


See also: Logarithm

Calculation/Simplification with Exponentials






Exponentiation Calculator a^b (Exponential of base a)

Answers to Questions (FAQ)

What is the exponential function? (Definition)

The definition of the exponential function is the solution of the equation $ f' = f $ with $ f(0) = 1 $, i.e. the function which is its own derivative and which has the value 1 at 0.

The exponential function is denoted by exp that is, by default, based on the number $ e \approx 2.71828\ldots $ (check also the decimals of the number e).

Example: $ \exp(7) = e^7 \approx 1096.633 $

exp

The $ e^x $ notation is sometimes ambiguous, because $ e $ may be used as a variable, prefer using the $ \exp(x) $ notation.

What are the properties of the exponential function?

The exponential has several remarkable properties

$ \exp(0) = 1 \\ \exp(1) = e \approx 2.71828\ldots \\ e^(x+y) = e^x \times e^y \\ (e^x)^b = e^{bx} \\ \ln(\exp(x)) = x \\ \exp(\ln(x)) = x $$

The derivative of the exponential function is the exponential function itself

$$ f(x) = \exp(x) \iff f'(x) = \exp(x) $$

The exponential is related to the exponentiation by the formula:

$$ a^b = e^{b\ln(a)} $$

In the complex plane, the exponential has several other properties (complex exponential form):

$$ \exp(i x) = \cos x + i \sin x \\ \exp(a + i b) = \exp(a) ( \cos b + i \sin b ) $$

The exponential function can be defined as a series expansion based on factorial and exponentiation:

$$ \exp(x)=\sum _{{n=0}}^{{\infty }}{x^{n} \over n!} $$

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Exponential on dCode.fr [online website], retrieved on 2024-06-15, https://www.dcode.fr/exponential

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