/****************************************************************************/
/* (C) Copyright 1993 Universidade Estadual de Campinas (UNICAMP)           */
/*                    Campinas, SP, Brazil                                  */
/*                                                                          */
/* This file can be freely distributed, modified, and used for any          */
/*   non-commercial purpose, provided that this copyright and authorship    */
/*   notice be included in any copy or derived version of this file.        */
/*                                                                          */
/* DISCLAIMER: This software is offered ``as is'', without any guarantee    */
/*   as to fitness for any particular purpose.  Neither the copyright       */
/*   holder nor the authors or their employers can be held responsible for  */
/*   any damages that may result from its use.                              */
/****************************************************************************/

/* Plotting the graph of a 1-argument function. */

#ifndef FLTGRAPH_H
#define FLTGRAPH_H

#include <flt.h>
#include <ia.h>
#include <stdio.h>

void fltgraph_plot(
    FILE *psfile,
    Float f (Float x),
    Interval xd,
    Interval yd,
    int m
  );
  /* 
    Draws the graph of $f(x)$ for $x \in xd$.
    
    Assumes $*psfile$ is a Postscript output file,
    properly initialized by $plt0$ for a $xd \x yd$ plot.
    The graph is approximated by $m$ straight segments. */

void fltgraph_draw_axes(
    FILE *psfile,
    Interval xd,
    Interval yd
  );
  /* 
    Draws the coordinates axes.
    
    Assumes $*psfile$ is an output Postcript file,
    properly initialized by $plt0$ for a $xd \x yd$ plot. */
  
#endif