improved π precision
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@ -165,7 +165,7 @@ namespace math {
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/* Some <math.h> files do not define M_PI... */
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#ifndef M_PI
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#define M_PI 3.14159265358979323846
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#define M_PI 3.14159265358979323846264338327950288
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#endif
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#ifndef SQRT_TWO
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