Created
January 20, 2015 18:59
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Factorial function written in Python. To calculate the factorial of a non-negative integer x, just multiply all the integers from 1 through x. For example: factorial(4) would equal 4 * 3 * 2 * 1, which is 24. factorial(1) would equal 1. factorial(3) would equal 3 * 2 * 1, which is 6.
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| def factorial(n): | |
| if n == 0: | |
| return 1 | |
| else: | |
| return n * factorial(n-1) |
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