Lines Matching full:pi
19 * ARG (x+iy) = pi - arctan[y/(-x)] ... if x < 0,
26 * ATAN2(+-0, -(anything but NaN)) is +-pi ;
27 * ATAN2(+-(anything but 0 and NaN), 0) is +-pi/2;
29 * ATAN2(+-(anything but INF and NaN), -INF) is +-pi;
30 * ATAN2(+-INF,+INF ) is +-pi/4 ;
31 * ATAN2(+-INF,-INF ) is +-3pi/4;
32 * ATAN2(+-INF, (anything but,0,NaN, and INF)) is +-pi/2;
52 pi = 3.1415926535897931160E+00; /* 0x400921FB, 0x54442D18 */ variable
78 case 2: return pi+tiny;/* atan(+0,-anything) = pi */ in atan2()
79 case 3: return -pi-tiny;/* atan(-0,-anything) =-pi */ in atan2()
98 case 2: return pi+tiny ; /* atan(+...,-INF) */ in atan2()
99 case 3: return -pi-tiny ; /* atan(-...,-INF) */ in atan2()
117 case 2: return pi-(z-pi_lo);/* atan(+,-) */ in atan2()
119 return (z-pi_lo)-pi;/* atan(-,-) */ in atan2()