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https://github.com/netsurf-browser/netsurf
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42 lines
947 B
HTML
42 lines
947 B
HTML
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<!DOCTYPE html>
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<html>
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<head>
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<title>JavaScript mandelbrot set</title>
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<style>pre {font-size:8pt;}</style>
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</head>
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<body>
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<h1>JavaScript generated mandelbrot set</h1>
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<script>
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function show_mandelbrot()
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{
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var gradation = " .,:;=|i+IhHOE#$ ";
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document.writeln("<pre>");
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for(i = -1.2; i <= 1.2; i += 0.04) {
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for(r = -2; r <= 1; r += 0.02) {
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var zr = r;
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var zi = i;
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var n = 0;
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for(; n < 16; n++) {
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var zr2 = zr * zr;
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var zi2 = zi * zi;
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if((zr2 + zi2) > 4) {
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break;
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}
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zi = 2 * zr * zi + i;
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zr = zr2 - zi2 + r;
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}
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document.write(gradation.charAt(n));
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}
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document.write("\n");
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}
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document.writeln("</pre>");
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document.close();
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}
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show_mandelbrot();
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</script>
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<noscript>
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JavaScript not enabled.
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</noscript>
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</body>
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</html>
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