Lines Matching defs:sum
65 double sum = covar[i][j];
68 sum -= factor[i][k] * factor[j][k];
71 if (sum < threshold)
72 sum = 1.0;
73 factor[i][i] = sqrt(sum);
75 factor[j][i] = sum / factor[i][i];
81 double sum = covar_y[i + 1];
84 sum -= factor[i][k] * m->coeff[0][k];
86 m->coeff[0][i] = sum / factor[i][i];
91 double sum = m->coeff[0][i];
94 sum -= factor[k][i] * m->coeff[j][k];
96 m->coeff[j][i] = sum / factor[i][i];
102 double sum = m->coeff[j][i] * covar[i][i] - 2 * covar_y[i + 1];
105 sum += 2 * m->coeff[j][k] * covar[k][i];
107 m->variance[j] += m->coeff[j][i] * sum;