Lines Matching refs:estimate
131 // Get initial estimate.
134 float estimate = *SkTCast<float*>(&i);
137 const float estimate_sq = estimate*estimate;
138 estimate *= 0.703952253f*(2.38924456f-x*estimate_sq);
139 return estimate;
155 // Get initial estimate.
157 float32x2_t estimate = vrsqrte_f32(xx);
160 const float32x2_t estimate_sq = vmul_f32(estimate, estimate);
161 estimate = vmul_f32(estimate, vrsqrts_f32(xx, estimate_sq));
162 return vget_lane_f32(estimate, 0); // 1 will work fine too; the answer's in both places.
