solvers.f90 File Reference

(libSUFR version 0.7.8, revision 407, hash 01069b8, 2025-03-02)

Procedures to solve equations. More...

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Modules
module	sufr_solvers
	Procedures to solve equations.

Functions/Subroutines
real(double) function	sufr_solvers::root_solver (func, x1, x2, accur, status, verbose)
	Using Brent's method, find the root of a function func that lies between x1 and x2.
real(double) function	sufr_solvers::minimum_solver (func, ax, bx, cx, accur, xmin, status, verbose)
	Use Brent's method and parabolic interpolation to find the minimum of function func that lies between xa and xc.
pure subroutine	golden_section (x1, x2, a1, a2, y1, y2)
	Do a golden-section step for minimum_solver(): find the point that is a fraction 0.382 into the larger of two intervals.

Detailed Description

Procedures to solve equations.

Definition in file solvers.f90.

Function/Subroutine Documentation

golden_section()

pure subroutine golden_section	(	real(double), intent(in)	x1,
		real(double), intent(in)	x2,
		real(double), intent(in)	a1,
		real(double), intent(in)	a2,
		real(double), intent(out)	y1,
		real(double), intent(out)	y2 )

Do a golden-section step for minimum_solver(): find the point that is a fraction 0.382 into the larger of two intervals.

Parameters

x1
x2
a1
a2
y1	(output)
y2	(output)

Definition at line 334 of file solvers.f90.

References sufr_kinds::dbl, and sufr_kinds::double.

Referenced by sufr_solvers::minimum_solver().