This repository contains a Python-based scientific calculator application featuring a modern, dark-themed interface built using CustomTkinter. It supports evaluation of complex mathematical expressions, dynamic function graphing, custom shift mapping for digit buttons, and full keyboard input support.

• Modern UI: A sleek, dark-themed interface built with CustomTkinter.

• Mathematical Evaluation: Supports arithmetic operations, trigonometric functions (sin, cos, tan), logarithms (log, ln), exponentiation, square roots, and more.

• Graphing Capabilities: Dynamically plot functions (e.g., polynomials, trigonometric functions, exponentials) using Matplotlib.

• Shift Mapping: Digit buttons display an extra character (e.g., 7 (x)) for shift mode. When shift is toggled on, pressing a digit inserts the corresponding letter instead.

• Keyboard Input Support: Use your keyboard to input expressions. Special keys:

  • Enter: Evaluate the expression.
  • Backspace: Delete the last character.
  • Escape: Clear the current expression.

• Dynamic Graph Options: Specify the x-axis range and variable to plot the graph for any valid mathematical function.

• Main Interface

Ensure you have Python 3.x installed, then install the required packages:

pip install customtkinter mpmath numpy matplotlib sympy

1. Clone the Repository:

   git clone https://github.com/Optimized-Brain/scientific-calculator.git
   cd scientific-calculator

2. Run the Application:

   python calculator.py

3. Using the Calculator:

   • Buttons: Click on the on-screen buttons to build your expression. For digit buttons, the displayed text shows both the digit and its shift-mapped letter (e.g., 7 (x)).
   • Shift Mode: Toggle shift mode by clicking the "Shift On/Shift Off" button. When activated, pressing a digit will insert its mapped letter.
   • Keyboard Support: You can also type on your keyboard:
     • Enter: Evaluates the current expression.
     • Backspace: Deletes the last character.
     • Escape: Clears the expression.

4. Graphing Functions:

   • Build your function expression (e.g., tan(x), x**2 + 3*x + 2, sin(x)).
   • Click the Graph button or "ctrl+g" command.
   • In the graph options window, set:
     • X min / X max: The range for the x-axis.
     • Variable: The variable in your expression (default is x).
   • Click Plot Graph to display the function's graph.

Graph Interface

Contributions are welcome! Feel free to open an issue or submit a pull request if you have improvements, bug fixes, or new features.

This project is licensed under the MIT License. See the LICENSE file for details.