Lines Matching defs:sy
56 1.41... > sg >= 0.70.., 0.70.. >= sy > 0.35... .
63 float sy; /* Estimate of 1/2g (overestimated by 1ulp). */
64 float sy2; /* 2*sy */
81 sy = t_sqrt[1];
88 sy2 = sy + sy;
89 sg = sy*sd + sg; /* 16-bit approximation to sqrt(sx). */
90 e = -(sy*sg - almost_half);
93 sy = sy + e*sy2;
97 sg = sg + sy*sd; /* 32-bit approximation to sqrt(sx),
99 sy2 = sy + sy;
101 e = -(sy*sg - almost_half);
103 sy = sy + e*sy2;
105 return g + sy*d;