Command-Line Calculator35

Command-Line Calculator (CLCalculator) provides the most fluid interface, especially if you are performing chained calculations i.e. multiple calculations that rely on the results of previous calculations.

By providing a command-line interface, CLCalculator allows you to easily enter and view the history of your calculations. You focus on your calculations instead of being intimidated by myriad of buttons on a traditional calculator interface! In addition to performing basic calculations, CLCalculator provides an array of features such as:

- Assign and reuse variables
- Complex numbers
- Number bases i.e. binary, octal, hexadecimal
- Constants e.g. e, pi
- String manipulation
- Matrices
- Unit conversion: in-built and user-defined (create your own units!)
- Functions: in-built and user-defined (create your own functions!)
- Arithmetic functions e.g. fraction, square root, rounding off, ceiling, floor, logarithm
- Algebra functions e.g. derivative, simplify symbolic expressions, solve linear equations
- Bitwise functions e.g. bitwise and, not, or, left and right shift
- Combinatorics functions e.g. Bell, Catalan, Stirling numbers
- Geometry functions
- Logical functions e.g. and, not, or, xor
- Probability functions e.g. combinations, permutations, factorial
- Relational functions
- Set functions e.g. cartesian product, intersection, union
- Statistics functions e.g. mean, median, mode, standard deviation, variance
- Trigonometry functions e.g. sin, cos, tan, cot, sinh, acos
- and much more!

The app also comes with a comprehensive in-built help system with plenty of examples. CLCalculator is powered by math.js (https://mathjs.org/)

Version History Bug fixes and performance improvement 35 Mar 27 Bug fixes and performance improvement 34 Jan 28 Optimized for iOS and iPadOS 26 33 11/11/2025 Bug fixes and performance enhancements 32 11/05/2025 Bug fixes and performance improvement 31 11/04/2025 Bug fixes and performance enhancements 30 11/04/2025 Bug fixes and performance enhancements 29 11/02/2025 Fixed a bug where trigonometric functions would return very large or small values 28 09/18/2025 Bug fixes and performance improvement 27 04/12/2025 Bug fixes and performance improvement 26 04/09/2025 - Minor interface enhancements
- Improved documentation 25 04/06/2025 - Option to use comma as decimal separator and dot as argument separator
- Command+Shift+A will paste the previous result 21 04/02/2025 Corrected round-off errors in decimal numbers 20 03/31/2025 - Options to use thousands separator
- Minor bug fixes 19 03/28/2025 Optimized for iOS 18 and iPadOS 18 17 09/12/2024 Improved documentation 2.4.2 02/09/2024 Bug fixes and performance improvement 2.4.1 10/02/2023 More customizable options 2.4 09/30/2023 Optimized for iOS and iPadOS 17 2.3 09/27/2023 Bug fixes and performance improvement 2.2.3 08/08/2023 Bug fixes and performance improvement 2.2.2 08/06/2023 Bug fixes and performance improvement 2.2.1 08/03/2023 - frac() function to convert a decimal to fraction e.g. frac(0.6)
- Show/hide info panel 2.2 08/02/2023 Optimized for iOS and iPadOS 16 2.1 11/26/2022 Minor display adjustment for Startup commands. 2.0.1 11/03/2021