broyden-good.hpp File Reference

#include <quala/util/vec.hpp>

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Classes
struct	BroydenStorage
	Layout: More...
struct	BroydenGoodParams
	Parameters for the BroydenGood class. More...
class	BroydenGood
	Broyden's “Good” method for solving systems of nonlinear equations \( F(x) = 0 \). More...

Namespaces
namespace	quala

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Class Documentation

quala::BroydenGoodParams

struct quala::BroydenGoodParams

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Class Members
length_t	memory	Length of the history to keep.
real_t	min_div_abs	Reject update if \( s^\top Hy \le \text{min_div_fac} \).
bool	force_pos_def	If set to true, the inverse Jacobian estimate should remain definite.
bool	restarted	If set to true, the buffer is cleared after memory iterations. If set to false, a circular buffer is used, replacing the oldest pair of vectors, as a limited-memory type algorithm. However, since each vector s̃ depends on the previous vectors, this algorithm is not theoretically correct, because the s̃ vectors are not updated when the old history is overwritten.
real_t	powell_damping_factor	Powell's trick, damping, prevents nonsingularity.