exp

Description

Calculate the base-e exponential of each element in the input. That is, $\text{[math]}$ .

Mandatory Input Parameters

Parameter	Type	Description
x	array_like	Input array or scalar

Optional Input Parameters

Parameter	Type	Default Value	Description
out	ndarray/ndarray tuple	None	Location where the calculation result is stored. If provided, it must have a shape that the inputs broadcast to. If not provided, a freshly-allocated array is returned.
where	array_like	None	This condition is broadcast over the input. At locations where the condition is true, the out array stores the result. Elsewhere, the out array retains its original value.
**kwargs	-	-	Other keyword arguments. Refer to the NumPy official document Universal functions (ufunc).

Return Value

Type	Description
ndarray/scalar	Element-wise base-e exponential of x

Examples

>>> import numpy as np
>>> np.exp(1.0)
2.718281828459045
>>> 
>>> x = np.arange(4)
>>> x
array([0, 1, 2, 3])
>>> np.exp(x)
array([ 1.        ,  2.71828183,  7.3890561 , 20.08553692])
>>>

Parent topic: Basic Operation Functions