A small graphing calculator for Arduboy! Very simple, though. More of a novelty than an actual calculator.
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LICENSE
README.md
graph.arduboy
graph.ino
graph001.png
graph002.png
graph003.png
graph004.png
graph005.png

README.md

What?

Yes, a graphing calculator for a credit-card-sized device. Fully functioning graphing, tables, and function editing! (unfortunately with presets)

Why?

I just to see if I could squeeze my graphing program into less than 32KB. At first, it seemed impossible, but then I found out I could just combine some unused arrays and I got 10% of my memory back.

How to install

Download the .arduboy and use a program like Arduboy Manager!

If you want to change the source code, just download the .ino file and open it in the Arduino IDE.

Controls

  • Up and Down: move cursor
  • Left and Right: decrease/increase selected variable
  • A: Go back to the graph screen

B depends on the current screen.

  • B while on graph and function screens: confirm
  • B while on function variable, window, and table screens: switch between adding 1 and adding 0.1
  • B while on the "Oh no!" screen: escape

Screenshots

You can see the floating point errors...

Function

Window

Table

Function variables