Lines Matching full:pi
17 * return the remainder of x rem pi/2 in y[0]+y[1]
27 * invpio2: 53 bits of 2/pi
28 * pio2_1: first 33 bit of pi/2
29 * pio2_1t: pi/2 - pio2_1
30 * pio2_2: second 33 bit of pi/2
31 * pio2_2t: pi/2 - (pio2_1+pio2_2)
32 * pio2_3: third 33 bit of pi/2
33 * pio2_3t: pi/2 - (pio2_1+pio2_2+pio2_3)
61 if(ix<=0x3fe921fb) /* |x| ~<= pi/4 , no need for reduction */
64 if (ix <= 0x400f6a7a) { /* |x| ~<= 5pi/4 */
65 if ((ix & 0xfffff) == 0x921fb) /* |x| ~= pi/2 or 2pi/2 */
67 if (ix <= 0x4002d97c) { /* |x| ~<= 3pi/4 */
93 if (ix <= 0x401c463b) { /* |x| ~<= 9pi/4 */
94 if (ix <= 0x4015fdbc) { /* |x| ~<= 7pi/4 */
95 if (ix == 0x4012d97c) /* |x| ~= 3pi/2 */
109 if (ix == 0x401921fb) /* |x| ~= 4pi/2 */
124 if(ix<0x413921fb) { /* |x| ~< 2^20*(pi/2), medium size */