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<?php
require_once ('graph2d.class.php');
 
 $xmin=0.0;
 $xmax=1.0;
 $xstep=0.001;
 
 $ymin=0.0;
 $ymax=1.0;
 $ystep=0.1;
 
 $xarr=array();
 $yarr1=array();
 $yarr2=array();
 $yarr3=array();
 
 $n=1001;
 for ($i=0; $i<$n; $i++)
 {
 $xarr[$i]=$xmin+$xstep*$i;
 $yarr1[$i]=$xarr[$i];
 $yarr2[$i]=$xarr[$i]*$xarr[$i];
 $yarr3[$i]=sqrt ($xarr[$i]);
 }
 
 $test=new graph2d ("jpeg", 700, 350, 60, 20, 20, 40);
 
 $test->SetAxisScales ($xmin, $xmax, 0.1, 1, $ymin, $ymax, $ystep, 1);
 
 $test->SetTitle ("Test");
 $test->SetXLegend ("X");
 $test->SetYLegend ("Y");
 
 $test->GraphCoord();
 
 $test->Draw($xarr, $yarr1, 0xFF, 0, 0);
 
 $test->Draw($xarr, $yarr2, 0, 0xFF, 0);
 
 $test->Draw($xarr, $yarr3, 0, 0, 0xFF);
 
 $test->ImageOut("");
 
 $test->Close();
 
 ?>
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