Hypatia RPN Calculator
Welcome to Hypatia!
The currrent version of Hypatia is 4.21, from January 30, 2025.
This documentation is for the upcoming version 4.5 which will be online in April.
The Hypatia website is hypatia-rpn.net
This HTML documentation (unlike the PDF Manual) is meant to be accessible to visually impaired users, via screen reader or Braille display.
Only 7bit ASCII characters and (apart from monospaced) no text attributes are used.
This documentation is work in progress, about three quarters done.
Last update: March 12, 2025
Chapters:
The Basics
First Steps
Operators and Constants
Numbers
Variables and User-Defined Constants
Insert Files and User Defined Elements
Results
Scripts
Loops
Scripts and Loops
Appendix
Chapters and Pages:
What is Hypatia?
Installation
Reverse Polish Notation (RPN)
Input Lines
Input Editor
Hypatia's Files
Viewing and Editing Files
Simple Calculations
Chain Calculations, $ and $$
Debugging Calculations
Copy to Clipboard
1-Argument Operators
2-Argument Operators
n-Argument Operators
Constants
Pseudo Constants
Pseudo Operators
Writing Numbers
Output Format
Angles
The Zero Threshold
Integer Bias
Setting Variables
Saving Variables
User-Defined Constants
Insert Files
User-Defined Elements
User-Defined Operators
Notes on User-Defined Elements
HY and Accumulation Mode
Result Commands
The Result Buffer
Introduction to Scripts
IF ... THEN Conditions
Script Example: Body Mass Index
Script Example: Centimeters to Feet and Inches
Loops
Loop and Scripts Examples
Commands
Control Symbols and Comments
Command Line Options
Command Line Mode
Technical Notes
Release Notes