(name:postfix) (author:Dmitry M Litvinov) (date:2/1/96) (desc:A command-line calculator with postfix notation) (size:80 25) > v ****** Postfix-Calculator ****** >v"Enter forth-expressions:"*250< * 10 3+567 89*- -50450 * ,: ******************************** ^_$ v > v ^+*+91\-"0"< |`!"9":< ~ |!`\"0":< v < < \ 0 >:"9"`!| >:"0"\`!| >:25*-| > v >:"/"-| $ $ >:"*"-| $ . v"error"*25< >:"-"-| $ / 2 >25*,,,,,,,v >:"+"-| $ * 5 >~>:" "-| $ - * $ + , ^ < < < < < < <