How to calculate factorial in Python 3.6.2?

Question

I would like import 'math' but I can only import 'cmath'. And there isnot gamma function or factorial. I donot want to work with complex numbers, is there any way how to import 'math' instead of 'cmath'?

Answer 1

In sololearn playground fortunately it is working:
import math
n = int(input("Type in the number: "));
f = math.factorial(n);
print (f);

Answer 2

It should be possible to import math in python 3.6.2
I had extra a look in the docs. Here
https://docs.python.org/3.6/library/math.html

Which error occurs when you try to import math?

Answer 3

okay. this is really strange. Sorry, but I have no idea why it doesn't work. :(
maybe you install a little older version, 3.5 or so.

Answer 4

try this:
help ('modules')
and look if math is listed

Answer 5

Thanks for your help.

Answer 6

'No module named math' I can import only cmath :(

Answer 7

n = int(input("!n="))
def factorial(n):
fact = 1
for i in range(n):
fact = fact*(i+1)
print (fact)
factorial(n)

Answer 8

It also work on PC, but it say that it is mistake, and write it red, but now it works. I do not know why...