Truncating decimal digits numpy array of floats

Question

I want to truncate the float values within the numpy array, for .e.g.

2.34341232 --> 2.34 

I read the post truncate floating point but i

Answer 1

Use numpy.round:

import numpy as np
a = np.arange(4) ** np.pi
a
=> array([  0.        ,   1.        ,   8.82497783,  31.5442807 ])
a.round(decimals=2)
=> array([  0.  ,   1.  ,   8.82,  31.54])