"106395821"@en-us . . . "06814655-n"^^ . . . "postfix notation"^^ . . "reverse Polish notation"@en-us . . "0"^^ . . "0.125"^^ . "postfix notation"@en-us . "106814655"^^ . "105103898"@en-us . . . "suffix notation"@en-us . . "a parenthesis-free notation for forming mathematical expressions in which each operator follows its operands"@en-us . .