How to calculate modulus?

Question

I have a task to create a mathematical formula in c++, input some variables and get a result.

The problem is that I don't know how to represent and calculate the following:

sin(3 mod 180)

I`m aware that mod operator finds the remainder of a division. I can figure that out for 180 mod 3, but for 3 mod 180.

why would you think that `180 mod 3` is a different operation than `3 mod 180`? — bolov, Feb 25 '14 at 12:22
For x mod y on floats, try y - int(x / y) * y . The result for y <= 0 or x < 0 are not well defined. — brian beuning, Feb 25 '14 at 12:45
@Jarod42 Learn something every day... Suppose it makes sense. — Proxy, Feb 25 '14 at 13:10
Thanks all for your answers. When I calculate it with std::sin as Jared42 suggested i get something like 0.14.... and some of you answered that 3 mod 180 is 3...how do you calculate it to get 3? — Vallerious, Feb 25 '14 at 18:43

score 1 · Accepted Answer · edited Feb 25 '14 at 13:13

1

C++ and standard C library provides methods for most arithmetic operations std::sin being one of them. You can do mod using modulo operator.

I.e. std::sin(3 % 180)

edited Feb 25 '14 at 13:13

Jarod42

answered Feb 25 '14 at 13:00

aks

1 Answers1