Get the powers of a NumPy array values element-wise
NumPy is a powerful N-dimensional array object and its use in linear algebra, Fourier transform, and random number capabilities. It provides an array object much faster than traditional Python lists. numpy.power() is used to calculate the power of elements. It treats first array elements raised to powers from the second array, element-wise.
Syntax: numpy.power(arr1, arr2, out = None, where = True, casting = ‘same_kind’, order = ‘K’, dtype = None)
arr1 : [array_like]Input array or object which works as base.
arr2 : [array_like]Input array or object which works as exponent.
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.
So, let’s discuss some examples related to the getting power of an array.
Example 1: compute the power of an array with different element-Wise values.
Original array array1 [0 1 2 3 4] array2 [0 2 4 6 8] power to the array1 and array 2 : [ 1 1 16 729 65536]
Examples 2: computing the same power for every element in the array.
Original array [0 1 2 3 4 5 6 7] power of 3 for every element-wise: [ 0 1 8 27 64 125 216 343]
Examples 3: computing the power of decimal value.
Original array array1 [0 1 2 3 4] array2 [1.0, 2.0, 3.0, 3.0, 2.0] power to the array1 and array 2 : [ 0. 1. 8. 27. 16.]
Note: you can not compute negative power