What's New? - Version 4 of CALC 1 is now available!

Since there were so many upgrades to CALC 1 in version 4, we had to make it a separate app.

The new version is available as a part of an App Bundle in the App Store.

Select the Bundle, then 'Complete the Bundle' for a free copy for owners of version 3.5.

- Getting Started
- Overview
- Calculation Methods
- Calculations Using the Chain Calculation Mode
- Calculations Using the Algebraic Calculation Mode
- Calculations Using the RPN Calculation Mode
- Storing and Recalling Numbers
- Guide for HP 10bII and 10bii+ Users
- Guide for HP 12C Users
- Guide for TI BA Users
- Notes for iPad Users
- Notes for iPhone Plus Size Users

- Percentage Calculations
- Time Value of Money - TVM
- Amortization
- Cash Flow Calculations
- Bonds
- Depreciation
- Statistics
- Curve Fitting
- Dates
- Customization
- Utilities
- Reproductions
- Reference
- Free CALC 1

Use the search to find documentation on any subject! The search field is at the top of every page of the documentation.

opens the CALC 1 help page for that calculator. An internet connection is required.

I'll be using the CALC 1 Facebook page to answer questions and discuss new features. Please Like the page!