[python-hpc] about numpy

[mamat_pator]

How to passing linspace array to mgrid in numpy.?
i Tried  following code:

import numpy as np

t = np.linspace(0, 10, 21)

x = np.linspace(-0.2, 2.2 , 25)

A,B = np.mgrid[t, x]

print A,3*'\n' , B


but i Get error result:
Traceback (most recent call last):
File "D:\python\project\fisika sistem kompleks\quiver_test.py", line 13, 
in <module>
A,B = np.mgrid[t, x]
File "C:\Python27\lib\site-packages\numpy\lib\index_tricks.py", line 
149, in __getitem__
step = key[k].step
AttributeError: 'numpy.ndarray' object has no attribute 'step'


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