Lines Matching refs:alpha
407 // alpha (norm of x with opposite signedness of x_1) and thus r_{j,j}
408 double alpha = (a[j][j] < 0 ? sqrt(innerProduct) : -sqrt(innerProduct));
409 d[j] = alpha;
411 double beta = 1 / (alpha * a[j][j] - innerProduct);
413 // u = x - alpha * e_1
415 a[j][j] -= alpha;
827 double alpha = 1;
843 if (alphaI < alpha) {
844 alpha = alphaI;
848 TRACE("alpha: %f, barrier: %d\n", alpha, barrier);
850 if (alpha < 1)
853 // x += p * alpha;
854 add_vectors_scaled(x, p, alpha, fVariableCount);