Efficiently using Numpy to assign function values to array

I am interested in finding the fastest way of carrying a simple operation in Python3.6 using Numpy. I wish to create a function and from a given array to an array of function values. Here is a simplified code that does that using map:

import numpy as np
def func(x):
    return x**2
xRange = np.arange(0,1,0.01)
arr_func = np.array(list(map(func, xRange)))

However, as I am running it with a complicated function and using large arrays, runtime speed is very important for me. Is there a known faster way?

EDIT My question is not the same as this one, because I am asking about assigning from a function, as opposed to a generator.