# | Line 54 | Line 54 | tcos(double x) /* approximate cosine */ | |
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54 | ||
55 | /* Fast arctangent approximation due to Rajan et al. 2006 */ | |
56 | double | |
57 | < | aatan2(double y, double x) |
57 | > | atan2a(double y, double x) |
58 | { | |
59 | double ratio, aratio, val; | |
60 |
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