Name: The Swiss army knife of calculators
Rating: 3.9 (31 reviews)
Author: SylvainGagnon

The Swiss army knife of calculators allows to perform simple, scientific, unit conversion, loans/savings and statistical calculations from your touch-enabled watches using either BEDMAS or RPN calculation methods.

***The result field is the EQUAL sign*** See below for more details 

If you enjoy this app, you can support my work with a small donation: https://bit.ly/sylvainga

Features include:

- Six panels - Numbers, arithmetic, scientific, unit conversion, loans/savings and statistical;
- The panel order is configurable through the app Settings;
- Can be used for BEDMAS (order of operations are Brackets, Exponent, Multiplication, Division, Addition and Substraction) or RPN (Reverse Polish Notation). There is enough place for over 50 pending operations in its buffer. You select between BEDMAS and RPN through the Apps settings on your phone or Garmin Express;
- Includes a Memory function to store something for use later;
- History of the last x result. You can choose to save from 0 to 50 results in the history buffer (defaults to 10). Settable in the app Settings;
- Simple gesture to switch panels, adjust rounding precisions and view history/RPN stack;
- Support Glance mode where it displays the last result;
- Support Complication so it can be launched directly from a watch face. Simply use 0 for Type and Calculator for the Long Name;
- Available in both French and English. If you want to help translating in another language, get in contact with me.

Please raise an issue if anything doesn't work correctly, if you have issues with swiping, or if you use an unsupported Garmin device, via the [Github issues page](https://github.com/SylvainGa/Calculator/issues).

*** The RPN addition was a bit more demanding than originally thought and during my testing, it behaved correctly, If you're experiencing issues with it, instead of leaving a negative review, contact me and we'll discuss it and see what can be changed, if any. Thanks.

## Usage

To use, simply launch it, preferably from a Glance. Reason is when launched from a Glance, gestures are available right away, instead of having to spawn a subview. If not launched from a Glance, you'll be asked to press the screen so the subview can be launched and activate the gestures. Sorry, that's a Garmin limitation.

Press any of the corresponding 'buttons' to activate it. There is no EQUAL (or Enter for RPN) button because THE TOP OF THE SCREEN acts as an EQUAL sign (in BEDMAS) or Enter (in RPN). TOUCH IT TO SIMULATE AN '=' (EQUAL) AND TERMINATE THE EQUATION in BEDMAS or to push the current data into the stack. In RPN, when the stack is empty, pressing '-' after a number, push the number into the stack and also changes it sign. Pressing '+' on an empty stack pushes the current value into the stack.

To enter an exponent, first press the '.' button if you haven't already entered a decimal point and the button will change to an 'E'. Press it followed by the corresponding exponent number.

You scroll through the history/RPN stack by a swipe down/up gesture. A swipe down moves forward in the history while an up gesture moves backward. The latest result is in Position 0 (H=0) as well as viewable from the Glance view. In RPN, you'll scroll through the stack (S=) BEFORE showing the history (H=). Th stack or history value displayed can be used as part of the current equation.

You change panel by left and right swipes. Right swipes move forward in the panel order while left swipes move backward. The operators +, -, x, ÷ and CA will autoreturn to the number panel. In the settings, you can adjust the order of the panels.

For a complete description of the different panels, see the README file here: https://github.com/SylvainGa/Calculator#README.