MUMPS is also called M programming Language.It is a Data-Oriented Programming Language. It was developed by ANSI in 1966. It is a cross Platform Software.

MetaPost is a programming language much like Knuth’s METAFONT except that it outputs vector graphics, either PostScript programs or SVG graphics.

Maple Programming Language is a commercial algebra system and Interactive mode language. It was developed in 1988 by Waterloo Maple and written in C and Java language.

The best way to learn Mathematica programming is to learn it as a natural language. Mathematica programming language is very rich and in fact "overcomplete" in the sense that many built-in functions are in principle derivable from other built-in functions or their combinations.