Python math module

pow is built into the language(not part of the math library). The problem is that you haven't imported math.

Try this:

import mathmath.sqrt(4)

python math module import logarithm

You can also import as

from math import *

Then you can use any mathematical function without prefixing math. e.g.

sqrt(4)

python math module import logarithm

add:

import math

at beginning. and then use:

math.sqrt(num)  # or any other function you deem neccessary

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