#!/bin/ch
  
  /* plot2.cgi */
  include <stdio.h>
  include <numeric.h>
  include <chplot.h>
  
  int main() {
     array double x[50]; 
     class CPlot plot;
  
     setvbuf(stdout, NULL, _IONBF, 0); 
     linspace(x, 0, 6.2);
     plotxy(x, sin(x), "Web-based plotting", "x", "sin(x)", &plot);
     plot.outputType(PLOT_OUTPUTTYPE_STREAM, "png");
     plot.plotting();
  }