numpy.expm1(array, out = None, where = True, casting = 'same_kind', order = 'K', dtype = None) :
This mathematical function helps user to calculate exponential of all the elements subtracting 1 from all the input array elements.
Parameters :
array : [array_like]Input array or object whose elements, we need to test.
out : [ndarray, optional]Output array with same dimensions as Input array,
placed with result.
**kwargs : allows you to pass keyword variable length of argument to a function.
It is used when we want to handle named argument in a function.
where : [array_like, optional]True value means to calculate the universal
functions(ufunc) at that position, False value means to leave the
value in the output alone.
Return :
An array with exponential(all elements of input array) - 1.
Code 1 : Working
Output :
Input array :
[1, 3, 5]
Exponential value of array element :
[ 2.71828183 20.08553692 148.4131591 ]
(Exponential value of array element) - (1) :
[ 1.71828183 19.08553692 147.4131591 ]
Code 2 : Graphical representation