A single 3d rotation equation?

Question

Alright I know you can use the 3d rotation matrix to figure out how something rotates in a 3d world. But in the particular program I'm writing it won't support that, or any matrices for that matter. Someone already gave me the equations to figure out a rotation on the x y and z axes but not a generalized equation for multiple rotations ect. Does such a thing exist and what is it?

Answer 1

Just write down the rotation matrix, and multiply it by the vector <x,y,z> and you will get your 3 equations as the entries of the vector.

Also, what type of program does not support data arrays? You may want to double-check that. Or you could just write a program that does the matrix multiplication.