Lines Matching refs:estimate
108 // Get initial estimate.
112 float estimate;
113 memcpy(&estimate, &i, 4);
116 const float estimate_sq = estimate*estimate;
117 estimate *= 0.703952253f*(2.38924456f-x*estimate_sq);
118 return estimate;
134 // Get initial estimate.
136 float32x2_t estimate = vrsqrte_f32(xx);
139 const float32x2_t estimate_sq = vmul_f32(estimate, estimate);
140 estimate = vmul_f32(estimate, vrsqrts_f32(xx, estimate_sq));
141 return vget_lane_f32(estimate, 0); // 1 will work fine too; the answer's in both places.
