Lines Matching refs:qx
174 // For better accuracy when x > 0.3, let qx = |x|/4 with
175 // the last 32 bits mask off, and if x > 0.78125, let qx = 0.28125.
177 // cos(X+Y) = (1-qx) - ((X*X/2-qx) - (r-X*Y)).
178 // Note that 1-qx and (X*X/2-qx) is EXACT here, and the
194 var qx;
196 qx = 0.28125;
198 qx = %_ConstructDouble(%_DoubleHi(0.25 * X), 0);
200 var hz = 0.5 * z - qx;
201 return (1 - qx - (hz - (z * r - X * Y))) SIGN;
