I'd call this more of a stack based programming language than a "calculator". By the way, if you're going to natively support lists, where are the lookups and i

I'd call this more of a stack based programming language than a "calculator". By the way, if you're going to natively support lists, where are the lookups and indexes? Below is a link to a faithful reproduction of an RPN calculator from the 1980's, available for desktop and mobile. My phone is incomplete without this. Thank you Bill Foote. https://jrpn.jovial.com/ https://jrpn.jovial.com/