Lines Matching refs:pi
19 pi = 3.1415927410e+00, /* 0x40490fdb */
42 case 2: return pi; /* atan(+0,-anything) = pi */
43 case 3: return -pi; /* atan(-0,-anything) =-pi */
48 return m&1 ? -pi/2 : pi/2;
53 case 0: return pi/4; /* atan(+INF,+INF) */
54 case 1: return -pi/4; /* atan(-INF,+INF) */
55 case 2: return 3*pi/4; /*atan(+INF,-INF)*/
56 case 3: return -3*pi/4; /*atan(-INF,-INF)*/
62 case 2: return pi; /* atan(+...,-INF) */
63 case 3: return -pi; /* atan(-...,-INF) */
69 return m&1 ? -pi/2 : pi/2;
79 case 2: return pi - (z-pi_lo); /* atan(+,-) */
81 return (z-pi_lo) - pi; /* atan(-,-) */