# Pset3: Music - how am I supposed to get pow() to parse 1/12ths?

I've been stuck on this for what feels like hours, but I simply don't understand how to get the pow() function to properly deal with n twelfths of 2

I've tried this

`````` {
double base_hz = 440.00;
base_hz = base_hz / pow(2,(1/ 12));
printf("HZ is now %f", base_hz);
}
``````

Which just returns back 440

and I've also tried 440 / pow(2,00.83) which resulted in 247.512863???

You probably meant `0.083` instead of `00.83`, but I totally get what you say.
In C, the division of two integers is an integer (truncating the result). So `1/12` is `0`. You could avoid this by making one of them a floating point number, like `1/12.0`.
Side note: When you run into the programming language "Python" in pset 6, that used to have the same problem in Python 2, but now, in Python 3, there's the `/` floating point divide and `//` integer divide operator. The changes were breaking (and slowly introduced, with a backport to Python 2), this is not going to happen for C.