Lines Matching defs:step_size
74 ParameterVector step_size = x.array().abs() * relative_step_size;
77 // step_size for the other dimensions.
78 double fallback_step_size = step_size.sum() / step_size.rows();
81 // relative step_size as absolute step_size and hope for the best.
88 if (step_size(j) == 0.0) {
89 // The parameter is exactly zero, so compromise and use the mean step_size
92 step_size(j) = fallback_step_size;
94 x_plus_delta(j) = x(j) + step_size(j);
108 double one_over_h = 1 / step_size(j);
111 x_plus_delta(j) = x(j) - step_size(j);
