[email protected]:/home/python#python python_numpy_random_2d_float.py
[[0.31046124 0.91177729 0.71111842 0.89514633 0.21319486]
 [0.24412911 0.98166084 0.50017557 0.68680264 0.5509992 ]
 [0.68039084 0.43785255 0.77515654 0.74818743 0.93713536]]