Lines Matching refs:z
64 double z,p,q,r,w,s,c,df; in acos() local
79 z = x*x; in acos()
80 p = z*(pS0+z*(pS1+z*(pS2+z*(pS3+z*(pS4+z*pS5))))); in acos()
81 q = one+z*(qS1+z*(qS2+z*(qS3+z*qS4))); in acos()
85 z = (one+x)*0.5; in acos()
86 p = z*(pS0+z*(pS1+z*(pS2+z*(pS3+z*(pS4+z*pS5))))); in acos()
87 q = one+z*(qS1+z*(qS2+z*(qS3+z*qS4))); in acos()
88 s = sqrt(z); in acos()
93 z = (one-x)*0.5; in acos()
94 s = sqrt(z); in acos()
97 c = (z-df*df)/(s+df); in acos()
98 p = z*(pS0+z*(pS1+z*(pS2+z*(pS3+z*(pS4+z*pS5))))); in acos()
99 q = one+z*(qS1+z*(qS2+z*(qS3+z*qS4))); in acos()