Lines Matching refs:z
61 double z,p,q,r,w,s,c,df; in acos() local
76 z = x*x; in acos()
77 p = z*(pS0+z*(pS1+z*(pS2+z*(pS3+z*(pS4+z*pS5))))); in acos()
78 q = one+z*(qS1+z*(qS2+z*(qS3+z*qS4))); in acos()
82 z = (one+x)*0.5; in acos()
83 p = z*(pS0+z*(pS1+z*(pS2+z*(pS3+z*(pS4+z*pS5))))); in acos()
84 q = one+z*(qS1+z*(qS2+z*(qS3+z*qS4))); in acos()
85 s = sqrt(z); in acos()
90 z = (one-x)*0.5; in acos()
91 s = sqrt(z); in acos()
94 c = (z-df*df)/(s+df); in acos()
95 p = z*(pS0+z*(pS1+z*(pS2+z*(pS3+z*(pS4+z*pS5))))); in acos()
96 q = one+z*(qS1+z*(qS2+z*(qS3+z*qS4))); in acos()