Lines Matching +full:high +full:- +full:accuracy
16 * __kernel_sin ... sine function on [-pi/4,pi/4]
17 * __kernel_cos ... cosine function on [-pi/4,pi/4]
22 * [-PI/4, +PI/4]. Reduce the argument x to y1+y2 = x-k*pi/2
23 * in [-pi/4 , +pi/4], and let n = k mod 4.
27 * ----------------------------------------------------------
29 * 1 C -S -1/T
30 * 2 -S -C T
31 * 3 -C S -1/T
32 * ----------------------------------------------------------
36 * trig(+-INF) is NaN, with signals;
39 * Accuracy:
56 /* High word of x. */ in cos()
62 if(ix<0x3e46a09e) /* if x < 2**-27 * sqrt(2) */ in cos()
68 else if (ix>=0x7ff00000) return x-x; in cos()
75 case 1: return -__kernel_sin(y[0],y[1],1); in cos()
76 case 2: return -__kernel_cos(y[0],y[1]); in cos()