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Numbers and Functions f/ Watch app for iPhone and iPad


4.6 ( 2816 ratings )
Productivity Utilities
Developer: Stefan Kopp
0.99 USD
Current version: 1.3, last update: 9 months ago
First release : 03 May 2023
App size: 1.38 Mb

Adds a wearable calculator to your watch with support for advanced math functions and complex numbers.

Functions supported:
- Basic math
- Square root, power, logarithmic functions
- Trigonometry
- Percentage
- Gamma, log-gamma
- Error function, complementary error function
- Factorials
- Random numbers
- Absolute value
- Round to integer
- Creation of complex numbers from their components (Re/Im or r/phi)
- Conjugate
- Change of notation between Re/Im and polar (r/phi)
- Basic math for complex numbers

This calculator uses postfix notation (also know as Reverse Polish notation). If you have ever used an RPN calculator (such as a classic HP calculator), you will not want to switch back. For those not familiar with RPN: enter the operands first, then select the operation. Operands are pushed on a stack and removed when applying an operation. Results are pushed back on the stack, ready for the next operation.

Various numbers styles can be selected (regular floating point, scientific notation, engineering notation).

This is a standalone watch app and does not require your iPhone to be nearby.

No in-app purchases or other hidden cost. Buy now and get future enhancements at no additional cost!