4th DIMENSION EQUATIONS!!! CALCULUS HELP I have to explain the 4th dimension and hyper-space using for my High School calculus AP final project. IF someone can give me some insight or some equations to help me see and learn more about the 4th dimension it will be greatly appreciated. Some stuff i know *(2x+1)^4 gives you the dimentions of a Hyper-Cube. * ds^2=dx1^2 + dx2^2 + dx3^2 + dx4^2 for a point in 4D space P.S. what does time have to do with the 4th dimention?