43 lines
944 B
PHP
Executable File
43 lines
944 B
PHP
Executable File
<?php // content="text/plain; charset=utf-8"
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require_once ('jpgraph/jpgraph.php');
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require_once ('jpgraph/jpgraph_line.php');
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require_once ('jpgraph/jpgraph_log.php');
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// Matrix size rxr
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$r = 10;
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// Max Interpolation factor
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$f = 5;
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for( $i=1; $i <= $f; ++$i ) {
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$xdata[] = $i;
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$ydata[] = pow( $r*pow(2,($i-1)) - ( pow(2,$i) - 1 ),2);
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}
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$graph = new Graph(400,240);
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$graph->SetScale('intlog');
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$graph->SetMargin(50,50,20,30);
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$graph->SetFrame(false);
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$graph->SetBox(true,'black',2);
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$graph->SetMarginColor('white');
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$graph->SetColor('lightyellow@0.7');
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$graph->title->Set('Interpolation growth for size 10x10');
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$graph->title->SetFont(FF_FONT1,FS_BOLD);
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$graph->xaxis->SetTitle('Interpolation factor','center');
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$graph->xaxis->SetTitleMargin(10);
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$graph->SetAxisStyle(AXSTYLE_YBOXIN);
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$graph->xgrid->Show();
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$lp1 = new LinePlot($ydata,$xdata);
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$lp1->SetColor('darkred');
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$lp1->SetWeight(3);
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$graph->Add($lp1);
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$graph->Stroke();
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?>
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