How to change float64 to double in numpy

The objective is to convert from float64 to double.

However, using the astype(np.double) does not changed the array type.

numpy.random.seed(0)
arr=np.random.rand(32,30,30)
arr1=arr.astype(np.double)
print(f'arr:{arr.dtype} and arr1: {arr1.dtype}')

arr:float64 and arr1: float64

MEDevel.com: Open-source for Healthcare and Education

Collecting and validating open-source software for healthcare, education, enterprise, development, medical imaging, medical records, and digital pathology.

Visit Medevel

>Solution :

import numpy as np
np.double is np.float64 # returns True

As you can see they are virtually the same

You can see that in the docs here where it is mentioned that np.float64 is just an alias for np.double