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RPNCalc 3.0

Freeware
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RPN calculator
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Screenshots & Images

Screenshot of Main program screen

Description

RPN Calculator

Description

RPN Calculator is a reverse polish notation programmable calculator for science and engineering. It supports well over 200 functions and 11 data types (real, integer, variable, vector, matrix, list, program, unit, complex, string, and tag). The stack, variables, and programs can be saved and reloaded. The number of levels of stack that can be used is virtually unlimited. If the number of levels in the stack exceeds the display, you can scroll up or down to see more.

Terms of Use

RPN Calculator was developed by Tom Boldt. RPN Calculator is freely distributable as Freeware. The latest version of RPN Calculator can be found at http://www.rpncalc.ca.

Requirements

RPN Calculator runs in any of the following environments:
- Microsoft* Windows* 8 x64.
- Microsoft* Windows* 7 x64.
* Microsoft and Windows are either registered trademarks or trademarks of Microsoft Corporation.

Installation Instructions

Copy CAB file to handheld and tap on it to install.

Tags

Calculatorrpnrpn calculator

   
License Freeware
The program is completely free to use.
   
Website http://tom.boldt.ca
Not working? Try this website on the WayBack Machine
   
Popularity 373
Total Downloads  157
   
Submitted By Rich Hawley
Submitted On 13 January 2014

Comments

Nuketank 28 August 2017 at 1:33:00 AM
Excellent RPN calculator. My go-to for all my calculating needs!
I love how all five accumulator registers are visible. Wish my HP12C had that feature!
Works on MIPS, even though that's not listed here.
Strathos 03 December 2021 at 7:56:09 PM
This is a gem of a program. Richly featured and also programable.

Here's a function/program to convert decimals to fractional notation (a->b/c). It will show "7/2 || 3_1/2" for 3.5; "355/113 || 3_16/113" for pi.

<< DUP if DUP FP then 6 end NEG ALOG 2 / 1 0 4 ROLL DUP ABS 5 ROLLD SIGN << X A * 0.5 + FLOOR >> << F X A * - ABS P A * >= >> -> X P A B S F W << X ABS while W repeat INV DUP IP ABS A * B + A 'B' STO 'A' STO FP end DROP F S * 'F' STO F ->STR "/" A ->STR " || " F SIGN X IP * ->STR "_" F A MOD ->STR "/" A ->STR >> + + + + + + + + MSGBOX >>

This one allows you to input a precision value for better approximations on irrational numbers.

<< DUP if DUP FP then "Precision digits" "" input obj-> end NEG ALOG 2 / 1 0 4 ROLL DUP ABS 5 ROLLD SIGN << X A * 0.5 + FLOOR >> << F X A * - ABS P A * >= >> -> X P A B S F W << X ABS while W repeat INV DUP IP ABS A * B + A 'B' STO 'A' STO FP end DROP F S * 'F' STO F ->STR "/" A ->STR " || " F SIGN X IP * ->STR "_" F A MOD ->STR "/" A ->STR >> + + + + + + + + MSGBOX >>

You can assign the program to a variable as follows:
Paste the program into the input field.
Press enter.
Type the name of the variable between single quotes. E.g. 'fr'.
Press enter.
Type STO.
Press enter.

Afterwards, you can execute the function by typing the variable name without quotes and pressing enter.
3.5<enter>
fr <enter>

You can create a shortcut so it automatically opens your RPN file when launched.
"\Program Files\RPN Calculator\rpncalc.exe" \My Documents\RPNCalc.RPN

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