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60 jpm 1
<?php
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/*
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 * This work is hereby released into the Public Domain.
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 * To view a copy of the public domain dedication,
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 * visit http://creativecommons.org/licenses/publicdomain/ or send a letter to
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 * Creative Commons, 559 Nathan Abbott Way, Stanford, California 94305, USA.
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 *
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 */
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require_once "../../MathPlot.class.php";
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$graph = new Graph(300, 300);
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$plot = new MathPlot(-3, 3, 3, -3);
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$plot->setInterval(0.2);
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$plot->setPadding(NULL, NULL, NULL, 20);
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$function = new MathFunction('cos');
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$function->setColor(new DarkGreen);
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$function->mark->setType(Mark::SQUARE);
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$function->mark->setSize(3);
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$plot->add($function, "f(x) = cos(x)", Legend::MARK);
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$function = new MathFunction('exp');
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$function->setColor(new DarkRed);
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$function->mark->setType(Mark::SQUARE);
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$function->mark->setSize(3);
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$function->mark->setFill(new DarkBlue);
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$plot->add($function, "f(x) = exp(x)", Legend::MARK);
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function x2($x) {
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	return - $x * $x + 0.5;
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}
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$function = new MathFunction('x2');
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$function->setColor(new DarkBlue);
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$plot->add($function, "f(x) = - x * x + 0.5");
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$plot->legend->setPosition(0.9, 0.8);
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$plot->legend->setPadding(3, 3, 3, 3, 3);
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$graph->add($plot);
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$graph->draw();
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?>