Some special characters in variable and function names are modified in the translation process.
SMath -> Maxima -> SMath
a,b -> a_b -> a,b
a_b -> a_b -> a,b
This renders Maxima unusable in cases where names such as __x__ are used. One example is the Nonlinear Solvers plugin, function Taylor
Proposal: replace _ by %underline and , by %komma in names.