Programming, unless you are using a stack based language such as Forth, typically looks like “parenthesis” calculators. This is true for C, Fortran, Pascal, PL/I, etc. The trick with RPN calculators is to understand the stack. Once you get it, there is no going back and I know others who also stumble around with conventional calculators. I have had HP scientific calculators for 50 years. I move back and forth between calculator usage and programming without thinking about it. For complex equations, you start in the middle and work outward pushing and popping from the stack.
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Originally Posted by CoachKandSportsguy
multiplying by a hundred is a presentation/formatting issue, the number is still the same
ugh, using an HP is just beyond me. . I tried for the CFA / CPA exam, and just couldn't do it.
coming from more of a programming background, the reverse polish notation or whatever the name is for the process is just too weird. I started with excel way before grad school and HP finance calculator usage. . . even programmed a trash 80 to do engineering involute curve calculations in the very early 80s, so HP is just too niche to learn 
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