Command-line reverse polish notation (RPN) calculator
RPN CLI is a Reverse Polish Notation (RPN) calculator for the command line.
Usage
Install RPN CLI globally on your machine by using the command
$ npm i rpn-cli-calculator -g
To use RPN CLI in the command line, the syntax is node rpn-cli-calculator expression
Examples:
node rpn-cli-calculator 5 5 5 8 + + -
node rpn-cli-calculator 8 2 / 6 +