Created
November 7, 2015 12:32
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Pretty print a matrix in Python 3 with numpy
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def matprint(mat, fmt="g"): | |
col_maxes = [max([len(("{:"+fmt+"}").format(x)) for x in col]) for col in mat.T] | |
for x in mat: | |
for i, y in enumerate(x): | |
print(("{:"+str(col_maxes[i])+fmt+"}").format(y), end=" ") | |
print("") | |
# Try it! | |
import numpy as np | |
a = np.eye(5)*5 | |
a[0,1] = 230000000000 | |
a[2,4] = 0.000005 | |
matprint(a) | |
# 5 2.3e+11 0 0 0 | |
# 0 5 0 0 0 | |
# 0 0 5 0 5e-06 | |
# 0 0 0 5 0 | |
# 0 0 0 0 5 |
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