Doing documentation is required, to allow people to use your project. Here I present a rather easy solution.

Install plotutils

Debian

$ sudo apt-get install plotutils-dev

Fedora

$ sudo dnf install plotutils-devel

Use PlotUtils to plot a graph

Let us draw the \(sin(x)\) function using math library.

#include <stdio.h>
#include <math.h>

#define RANGE 100

// Export data to stdout
void plot(double *x, double *y, size_t len)
{
    for …