Searched defs:PI_2 (Results 1 - 2 of 2) sorted by relevance

/vbox/src/libs/libpng-1.2.8/contrib/gregbook/
H A Drpng2-win.c75 #define PI_2 (PI*0.5) macro
918 angle = (x == 0)? PI_2 : atan((double)y / (double)x);
H A Drpng2-x.c82 #define PI_2 (PI*0.5) macro
1023 angle = (x == 0)? PI_2 : atan((double)y / (double)x);

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