📈 Function Graph Plotter

🇷🇺 Читать на русском

A desktop application for plotting mathematical functions. The user enters a function of x, specifies the range, and the program renders an interactive graph in a window with coordinate axes.

Built with C++, SFML (graphics) and muParser (math expression parsing).

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Features

• Enter any mathematical function of x at runtime (e.g. sin(x), x^2, x*cos(x))
• Set custom X range
• Auto-scaling: Y range is computed automatically from the function values
• Coordinate axes with arrows drawn when they fall within the visible area
• Function label displayed in the top-left corner
• Handles undefined values gracefully (NaN, infinity, division by zero)

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Dependencies

Library	Purpose
SFML 2.x	Window, rendering, graphics
muParser	Math expression parser

Install on Ubuntu:

sudo apt install libsfml-dev libmuparser-dev

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Build & Run

# Compile
g++ main.cpp -o graph -lsfml-graphics -lsfml-window -lsfml-system -lmuparser

# Run (arial.ttf must be in the same directory)
./graph

Then follow the prompts in the terminal:

Введите функцию от x: sin(x)
Введите минимум X: -6.28
Введите максимум X: 6.28

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Project Structure

├── main.cpp       # Main source file
├── arial.ttf      # Font file for graph labels
├── README.md      # This file (English)
└── README.ru.md   # Russian version

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Supported Syntax

muParser supports standard math expressions:

Example	Description
sin(x), cos(x), tan(x)	Trigonometric functions
x^2, x^3	Powers
sqrt(x)	Square root
exp(x), log(x)	Exponential and logarithm
x*sin(x) + 2	Combined expressions

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Academic project (coursework) - RTU MIREA.