A compiler takes some language and translates it into something close(r) to the hardware. And that's what the OP does. And since it compiles in process and exec

A compiler takes some language and translates it into something close(r) to the hardware. And that's what the OP does. And since it compiles in process and executed it too, it's JIT, as opposed to AOT. These terms are not related to the complexity of the problem. The first compilers could only translate for formulas, hence FORTRAN.