Graph calculator written in Python, using Tkinter, NumPy, Matplotlib. Can be used as a basic calculator and as a graphing calculator.

• Can do arithmetic operations like addition, subtraction, multiplication, division, exponents
• Can graph one or more functions
• Can graph multiple graphs at once, using a comma-separated list of expressions
• Built in support for sin, cos, tan, log, sqrt, exp, abs, pi, and e
• Save graphs as png files
• Save calculator history as a txt file

• Python
• Tkinter
• NumPy
• Matplotlib
• PyInstaller (for building the app)

On some linux distros, Tkinter may be installed separately:

sudo apt install python3-tk

To setup the repo and run the app, run:

sh setup.sh

Use the on-screen buttons, or type the calculation directly into the input field. Press Enter or = to calculate.

Examples:

2+3*4
(10-3)/7

Choose Graph from the dropdown or from the top menu, enter an expression in terms of x, press Plot Graph or Enter.

Examples:

x^2
sin(x)
sqrt(abs(x))
)

Multiple expressions are also supported and entered separated by a coma ,, like:

x^4, sin(x), cos(x), sqrt(abs(x)),e^x

Graph mode also support ^ as exponentiation notation instead of Python's **.

• File > Save Historyory to save the calculator history as a .txt file at a specified file location.
• Save PNG or File > Save Graphaph to save the graph as a .png file at a specified file location.

To create a desktop build, run:

sh build.sh

The generated app files will be placed in PyInstaller's output folders, usually dist/.

.
├── build.sh
├── images
│   └── graph_eg.png
├── README.md
├── requirements.txt
├── setup.sh
└── src
    └── main.py
main.py