#ifndef GRAGL_H
#define GRAGL_H

typedef struct {
	double x;
	double y;
} Point2d;

typedef struct {
	double v;
	char valid;
} Scalar;

typedef struct {
	unsigned width;
	unsigned height;
	Scalar (*func)(double);
	unsigned n_func;
	double from;
	double to;
	double step;
} Plot2d;

typedef struct {
	Plot2d * plots;
	unsigned n;
	unsigned padding;
} Plot2dGroup;

Plot2dGroup * create_plot2d_group(int num_args, ...);
void free_plot2d_group(Plot2dGroup *);
void plot(Plot2dGroup *);

#endif