What's the difference between “mod” and “remainder”?

Question

My friend said that there are differences between \"mod\" and \"remainder\".

If so, what are those differences in C and C++? Does \'%\' mean either \"mod\" or \"rem\

Answer 1

There is a difference between modulus and remainder. For example:

-21 mod 4 is 3 because -21 + 4 x 6 is 3.

But -21 divided by 4 gives -5 with a remainder of -1.

For positive values, there is no difference.