how to find out a mod b in python?

Question

is there any modulo function in math lib in python?

isn't 15 % 4 3?? but 15 mod 4 is 1, right??

Answer 1

There's the % sign. It's not just for the remainder, it is the modulo operation.

Answer 2

Why don't you use % ?

print 4 % 2 # 0

Answer 3

mod = a % b

This stores the result of a mod b in the variable mod.

And you are right, 15 mod 4 is 3, which is exactly what python returns:

>>> 15 % 4
3
>>> `

@Macarse: Yes, but that is true for any \= construct in python, so I should think there's no need to point that out seperately for modulo.

Answer 4

>>> 15 % 4
3
>>>

The modulo gives the remainder after integer division.

Answer 5

you can also try divmod(x, y) which returns a tuple (x / y, x % y)