Lines Matching full:atan
74 case 1: return y; /* atan(+-0,+anything)=+-0 */
75 case 2: return pi+tiny;/* atan(+0,-anything) = pi */
76 case 3: return -pi-tiny;/* atan(-0,-anything) =-pi */
87 case 0: return pio2_hi*0.5+tiny;/* atan(+INF,+INF) */
88 case 1: return -pio2_hi*0.5-tiny;/* atan(-INF,+INF) */
89 case 2: return 1.5*pio2_hi+tiny;/*atan(+INF,-INF)*/
90 case 3: return -1.5*pio2_hi-tiny;/*atan(-INF,-INF)*/
94 case 0: return zero ; /* atan(+...,+INF) */
95 case 1: return -zero ; /* atan(-...,+INF) */
96 case 2: return pi+tiny ; /* atan(+...,-INF) */
97 case 3: return -pi-tiny ; /* atan(-...,-INF) */
114 case 0: return z ; /* atan(+,+) */
115 case 1: return -z ; /* atan(-,+) */
116 case 2: return pi-(z-pi_lo);/* atan(+,-) */
118 return (z-pi_lo)-pi;/* atan(-,-) */
