CLUSTER CALCULATOR-NOTATION-POLISH · 25 ENTRIES · EARLIEST ENTRY 2012-02-11
RPN and terminal calculator apps
This cluster consists of calculator applications, many emulating classic HP RPN logic or operating in terminal/command-line environments, with additional features such as bitwise operations, arbitrary precision, and scripting. The dated entries are spread thinly from 2012 to 2026, with no month having more than two entries, indicating a sparse and irregular timeline ohne accelerating trend. On traction, evline leads with 4 stars, while other listed products like SimplyRPN and SoulCalc show minimal or no activity.
Entry timeline
ENTRY TIMELINE
Each bar is the month a member carries, which is a creation date where the source published one and a crawl date otherwise. Nothing in the index was found before 11 August 2026, and coverage broadened sharply on 14–15 August, so a bar from then on reports how much we found that month, not how much was built; an earlier bar reports how far back a member's own source dated it — not how long we have been watching.
Members by activity
Activity signals, not revenue.
Build origin · 4 hand-coded · 16 unlabelled
Operator · 1 hobby · 1 commercial · 16 open source · 2 unlabelled
Two labels per entry, never collapsed into one: how it was built, and who stands behind it. Counted over the 20 listed below. Unlabelled means nothing has decided yet — not that the answer is small.
- 01evline5★1 mo—Notepad-style calculator for Linux that evaluates natural language math expressions and performs unit conversions instantly.
- 02numara-bin0★25 daysliveopen sourceNotepad calculator that evaluates mathematical expressions as the user types, combining text editing with scientific calculation.
- 03omega0★10 days—Terminal calculator that performs exact arbitrary-precision arithmetic on integers, rationals, and reals without rounding.
- 04better-calc-pro0★13 dayslivehand-codedcommercialNative macOS calculator with line-by-line worksheet, scientific and programmer keypads, and unit and currency conversion.
- 05SoulCalc0★2 moliveopen sourceMobile notepad calculator supporting multi-line expressions, named variables, line references, and real-time evaluation for everyday and budgeting calculations.
- 06SimplyRPN0★1 mo—hobbyCalculator application that performs reverse Polish notation arithmetic in the style of a classic handheld calculator.
- 07rpnx-rs-bin0★14 daysliveopen sourceTerminal calculator supporting RPN and scientific calculations.
- 08bittwiddle0★2 moliveopen sourceTerminal calculator for programmers that performs bitwise operations and number base conversions.
- 09yutovo0★1 moliveopen sourceA graphical calculator with arbitrary precision that operates as a WYSIWYG tool within a text editor.
- 10Dib2Calc0★10 mostaleliveopen sourceCalculator app that uses Reverse Polish Notation (RPN) for efficient input.
- 11Sums0★1 yrabandonedliveopen sourceDesktop calculator application that performs postfix notation calculations with two-way history navigation and one-click copying of results.
- 12quich0★1 yrabandonedliveopen sourceAdvanced terminal calculator that evaluates mathematical expressions from the command line.
- 13squiid0★1 yrabandonedliveopen sourceTerminal calculator supporting reverse Polish notation and algebraic input.
- 14RPN0★2 yrabandonedlivehand-codedopen sourceSimple reverse Polish notation calculator with fixed-point decimal arithmetic, supporting stack manipulation and exponentiation.
- 15RPNcalc0★3 yrabandonedliveopen sourceCalculator app using reverse Polish notation to speed up arithmetic entry with a simple interface.
- 16JRPN 16c0★5 yrabandonedlivehand-codedopen sourceProgrammer's calculator emulating the HP 16C RPN logic with binary, decimal, hex, and octal modes.
- 17xsc0★4 moliveopen sourceTerminal calculator tool for quickly evaluating mathematical expressions from the command line.
- 18RPN Calculator0★6 mostaleliveopen sourceDesktop application that emulates classic HP scientific and programmable calculators for performing reverse Polish notation calculations.
- 19Genius0★7 mostalelivehand-codedopen sourceGeneral-purpose calculator with arbitrary precision, complex numbers, matrix operations, and a scripting language.
- 20tapecalc0★9 mostaleliveopen sourceFixed-point calculator offering a full-screen editor for expression lists, arithmetic, interest and tax calculations for checkbook balancing.
Ranked by traction, highest first, and paged 20 at a time — this is a window on the cluster, never the whole of it. Ties are broken by a stable id so a product cannot appear on two pages or fall between them. Browse every cluster.