Lines Matching defs:iy
17 * ARG (x+iy) = arctan(y/x) ... if x > 0,
18 * ARG (x+iy) = pi - arctan[y/(-x)] ... if x < 0,
49 uint32_t m,lx,ly,ix,iy;
54 EXTRACT_WORDS(iy, ly, y);
57 m = ((iy>>31)&1) | ((ix>>30)&2); /* 2*sign(x)+sign(y) */
59 iy = iy & 0x7fffffff;
62 if ((iy|ly) == 0) {
75 if (iy == 0x7ff00000) {
92 if (ix+(64<<20) < iy || iy == 0x7ff00000)
96 if ((m&2) && iy+(64<<20) < ix) /* |y/x| < 0x1p-64, x<0 */