Python math.expm1() Method

Math Methods : Find the exponential value of a number - 1

Definition and Usage

The math.expm1() method returns E^x - 1.

'E' is the base of the natural system of logarithms (approximately 2.718282) and x is the number passed to it.

This function is more accurate than calling math.exp() and subtracting 1.

math.expm1(x)

Parameter	Description
x	Required. Specifies the exponent

Return Value:	A `float` value, representing E^x - 1
Python Version:	2.7

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