anlijiu / SdlGrapher

A small program to render math functions as charts with SDL2.

SdlGrapher

SdlGrapher is a small program to render math functions as Charts built with SDL2 library. The goal is also to demonstrate floating-point precision errors, that's why i didn't do any border / scaling checks.

Features

• Horizontal / vertical scrolling.
• Scaling with mouse wheel.
• No rendering if the math function returns NaN or Infinity.
• Movable axises. Screen => Math, Math => Screen unit converters.
• Automatically calculate scale and axis position based on interval of the math function.
• Pixel perfect rendering.

Screenshots

f(x) = x ^ 2

f(x) = 1 / x

f(x) = log(x)

f(x) = sqrt(x)

f(x) = sin(x)

f(x) = sqrt(x) * sin(x)

f(x) = 3 * sin(x / 4) - 2 / sin(2 * x)