Why does numpy.power return 0 for small exponents while math.pow returns the correct answer?

Question

In [25]: np.power(10,-100)
Out[25]: 0

In [26]: math.pow(10,-100)
Out[26]: 1e-100

I would expect both the commands to return 1e-100. This is not a

Answer 1

numpy method assumes you want integer returned since you supplied an integer.

np.power(10.0,-100) 

works as you would expect.