was it newton or Leibniz who invented calculus?

according to wikipedia – Both.

According to my calculus teachers; both.

i hate both of them for doing so

http://en.wikipedia.org/wiki/Newton_v._Leibniz_calculus_controversy

I side with Leibniz because he published first and Newton was a jerk.

Newton and Leibniz both created Calculus, but did so independently—they were bitter rivals—and did so while trying to solve very different problems. Newton was doing physics and Leibniz was studying limits.

Newton had practical uses for it… so I side with him.

I can also pronounce his name :P

Oh boy… you’re opening up a can of worms here. I think the general consensus is that they both did it independently. But Newton was a son of a bitch about it, and more or less devoted the rest of his life to tearing down Leibniz.

Leibniz has one thing going for him – his notation was more useful and flexible, and is the one we mostly use today (i.e. df/dx for a derivative. Newton put dots above a variable to indicate derivatives)