So for my term paper in programming, I was assigned to write a program that would solve Sylvester matrix equations for $X$ $$AX - XB = C$$ where $X$, $A$, $B$, and $C$ are all square matrices of the same size.
The process of solving them by hand is pretty long and tedious, and I don't want to deal with it, but I have no other way of checking my work. I've tried to find an online calculator that could solve this type of equations, but thus far to no avail. So if anyone knows of one - or any other approach that would allow me to skip doing it by hand - I will be very grateful, thanks :)