Tracking / precision settings to emit in the CONFIG section, in Bertini 1 terms. More...

#include <classic_writer.hpp>

Public Attributes
int	tracktype = 0
	0 = zero-dimensional solve
int	mptype = 2
	0 double, 1 fixed-multiple, 2 adaptive
int	odepredictor = 5
	5 = RKF45 (the Bertini 2 default)
double	tracktolbeforeeg = 1e-5
	Newton tolerance before the endgame.
double	tracktolduringeg = 1e-6
	Newton tolerance during the endgame.
double	finaltol = 1e-11
	final tracking tolerance
double	maxstepsize = 0.1
	MaxStepSize (B2 SteppingConfig default 1/10).
double	stepsuccessfactor = 2.0
	StepSuccessFactor (B2 default 2).
double	stepfailfactor = 0.5
	StepFailFactor (B2 default 1/2).
unsigned	stepsforincrease = 5
	StepsForIncrease (B2 default 5).
unsigned long	maxnumbersteps = 100000
	MaxNumberSteps (B2 default 1e5).
unsigned	maxnewtonits = 2
	MaxNewtonIts (B2 default 2).
unsigned	maxcrossedpathresolves = 2
	endgame-boundary crossed-path re-track attempts

Detailed Description

Tracking / precision settings to emit in the CONFIG section, in Bertini 1 terms.

Defaults mirror Bertini 2's defaults for an adaptive zero-dim solve, so the emitted file runs the same problem with the same knobs in Bertini 1 (the random start system aside).

Member Data Documentation

◆ finaltol

double bertini::classic::ClassicWriteOptions::finaltol = 1e-11

final tracking tolerance

◆ maxcrossedpathresolves

unsigned bertini::classic::ClassicWriteOptions::maxcrossedpathresolves = 2

endgame-boundary crossed-path re-track attempts

◆ maxnewtonits

unsigned bertini::classic::ClassicWriteOptions::maxnewtonits = 2

MaxNewtonIts (B2 default 2).

◆ maxnumbersteps

unsigned long bertini::classic::ClassicWriteOptions::maxnumbersteps = 100000

MaxNumberSteps (B2 default 1e5).

◆ maxstepsize

double bertini::classic::ClassicWriteOptions::maxstepsize = 0.1

MaxStepSize (B2 SteppingConfig default 1/10).

◆ mptype

int bertini::classic::ClassicWriteOptions::mptype = 2

0 double, 1 fixed-multiple, 2 adaptive

◆ odepredictor

int bertini::classic::ClassicWriteOptions::odepredictor = 5

5 = RKF45 (the Bertini 2 default)

◆ stepfailfactor

double bertini::classic::ClassicWriteOptions::stepfailfactor = 0.5

StepFailFactor (B2 default 1/2).

◆ stepsforincrease

unsigned bertini::classic::ClassicWriteOptions::stepsforincrease = 5

StepsForIncrease (B2 default 5).

◆ stepsuccessfactor

double bertini::classic::ClassicWriteOptions::stepsuccessfactor = 2.0

StepSuccessFactor (B2 default 2).

◆ tracktolbeforeeg

double bertini::classic::ClassicWriteOptions::tracktolbeforeeg = 1e-5

Newton tolerance before the endgame.

◆ tracktolduringeg

double bertini::classic::ClassicWriteOptions::tracktolduringeg = 1e-6

Newton tolerance during the endgame.

◆ tracktype

int bertini::classic::ClassicWriteOptions::tracktype = 0

0 = zero-dimensional solve

Public Attributes