I have a question regarding how to solve piecewise functions of two variables f(x, y) = z. The variables x, y, z are constrained to integers. Mathematica seems to be able to solve for x, y when given y without the need to iterate through all possible x, y values. Is this a question for Mathematica StackExchange or Mathematics StackExchange? I'm interested in the technique in solving these equations, and also how Mathematica solves it.
The editor is mistakenly identifying multiline mathjax code as unformatted code, not letting you submit it, not sure if this is as intended. Able to surpass it by indenting the multiline block, but had me confused for a while.