add tan function
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@ -33,6 +33,10 @@
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function cos(a) {
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function cos(a) {
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return Math.cos(a)
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return Math.cos(a)
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}
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}
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function tan(a) {
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return Math.tan(a);
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}
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</script>
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</script>
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</body>
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</body>
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</html>
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</html>
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