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@ -80,4 +80,18 @@ double tanD(double degrees){ |
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} |
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} |
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return sinD(degrees)/cosD(degrees); |
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return sinD(degrees)/cosD(degrees); |
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} |
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double atanD(double degrees){ |
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if (degrees>=360.0){ |
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degrees = squashDegreesTo360(degrees); |
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} |
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double sum = 0.0; |
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double radian = radians(degrees); |
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for (int i = 0; i <= 9; i++){ |
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sum += powerD((double) i, -1.0) * (powerD(2.0*i+1, radian) / 2.0*i+1); |
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} |
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return sum; |
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} |
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} |