postfix notation(n = noun.communication) reverse polish notation, suffix notation - a parenthesis-free notation for forming mathematical expressions in which each operator follows its operands;
is a kind of parenthesis-free notation

binary notation, chemical notation, decimal notation, duodecimal notation, fixed-point notation, floating-point notation, hexadecimal notation, infix notation, lukasiewicz notation, mathematical notation, musical notation, notation, octal notation, parenthesis-free notation, polish notation, positional notation, postfix, prefix notation, reverse polish notation, sexadecimal notation, suffix notation