[voidhorse]

I actually just had to use some sin/cos the other day while programming some audio stuff so there ya go. Not so useless after all.

[alanbernstein]

I remember telling a friend once in high school, that I was kind of happy to find a good real-world use for cubic polynomials. She asked what it was, so I started "well I was programming..." and she interrupted, "of course math is useful for programming, that doesn't count".