Lines Matching refs:z
98 double z, p, q, r, w, s, c, df; in acos() local
123 z = x * x; in acos()
124 p = z * (pS0 + z * (pS1 + z * (pS2 + z * (pS3 + in acos()
125 z * (pS4 + z * pS5))))); in acos()
126 q = one + z * (qS1 + z * (qS2 + z * (qS3 + z * qS4))); in acos()
131 z = (one + x) * 0.5; in acos()
132 p = z * (pS0 + z * (pS1 + z * (pS2 + z * (pS3 + in acos()
133 z * (pS4 + z * pS5))))); in acos()
134 q = one + z * (qS1 + z * (qS2 + z * (qS3 + z * qS4))); in acos()
135 s = sqrt(z); in acos()
141 z = (one - x) * 0.5; in acos()
142 s = sqrt(z); in acos()
145 c = (z - df * df) / (s + df); in acos()
146 p = z * (pS0 + z * (pS1 + z * (pS2 + z * (pS3 + in acos()
147 z * (pS4 + z * pS5))))); in acos()
148 q = one + z * (qS1 + z * (qS2 + z * (qS3 + z * qS4))); in acos()