Lines Matching defs:rh
124 double a, t, z, w = 0.0L, s, c, r, rh, xh, xl;
145 * Let r = -1/(x+T), rh = r chopped to 20 bits.
147 * -1/(x+T) = rh + (-1/(x+T)-rh) = rh + r*(1+rh*(x+T))
148 * = rh + r*((1+rh*xh)+rh*xl).
150 rh = r = -one / w;
151 ((int *) &rh)[LOWORD] = 0;
155 return (rh + r * ((one + rh * xh) + rh * xl));
179 * Let r = 1/(a+c), rh = (1-T)*r chopped to 20 bits.
181 * (1-T)/(a+c) = rh + ((1-T)/(a+c)-rh)
182 * = rh + r*(1-T-rh*(a+c))
183 * = rh + r*((1-T-rh*xh)-rh*xl)
184 * = rh + r*(((1-rh*xh)-T)-rh*xl)
187 rh = (one - t) * r;
188 ((int *) &rh)[LOWORD] = 0;
192 z = rh + r * (((one - rh * xh) - t) - rh * xl);