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RPN calculator
/ˌɑːpˌiːˈɛn kˈalkjʊlˌeɪtə/
/ˌɑːɹpˌiːˈɛn kˈælkjʊlˌeɪɾɚ/RPN calculator
01
a type of calculator that operates on a postfix notation system, where operators follow their operands, offering simplicity and efficiency in engineering and scientific calculations
