Question

is there an "easy" way to do 2d matrix multiplication in c++?

Answer 1

perhaps a library i dont know about or something? trying to minimize the amount of "new" code i have to write

Answer 2

Check this:
http://softsurfer.com/Archive/algorithm_0301/algorithm_0301.htm#vector.h

Answer 3

you can write the program for the matrix multiplication , put it in a header file, this way it will be compiled just once, so it will not affect your program's run time, probably your function would have to take the size of the matrices as an argument
hope it helps