Lines Matching defs:sum
61 double sum = covar[i][j];
64 sum -= factor[i][k] * factor[j][k];
67 if (sum < threshold)
68 sum = 1.0;
69 factor[i][i] = sqrt(sum);
71 factor[j][i] = sum / factor[i][i];
77 double sum = covar_y[i + 1];
80 sum -= factor[i][k] * m->coeff[0][k];
82 m->coeff[0][i] = sum / factor[i][i];
87 double sum = m->coeff[0][i];
90 sum -= factor[k][i] * m->coeff[j][k];
92 m->coeff[j][i] = sum / factor[i][i];
98 double sum = m->coeff[j][i] * covar[i][i] - 2 * covar_y[i + 1];
101 sum += 2 * m->coeff[j][k] * covar[k][i];
103 m->variance[j] += m->coeff[j][i] * sum;