Lines Matching refs:alpha
429 // alpha (norm of x with opposite signedness of x_1) and thus r_{j,j}
430 double alpha = (a[j][j] < 0 ? sqrt(innerProduct) : -sqrt(innerProduct));
431 d[j] = alpha;
433 double beta = 1 / (alpha * a[j][j] - innerProduct);
435 // u = x - alpha * e_1
437 a[j][j] -= alpha;
855 double alpha = 1;
871 if (alphaI < alpha) {
872 alpha = alphaI;
876 TRACE("alpha: %f, barrier: %d\n", alpha, barrier);
878 if (alpha < 1)
881 // x += p * alpha;
882 add_vectors_scaled(x, p, alpha, fVariableCount);