precondn.f90 File Reference

Compute preconditioning matrix elements for \(R\), \(Z\) force. More...

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Functions/Subroutines
subroutine	precondn (lu1, bsq, gsqrt, r12, xs, xu12, xue, xuo, xodd, axm, axd, bxm, bxd, cx, trigmult)
	Compute preconditioning matrix elements for \(R\), \(Z\) force.

Detailed Description

Compute preconditioning matrix elements for \(R\), \(Z\) force.

Definition in file precondn.f90.

Function/Subroutine Documentation

precondn()

subroutine precondn	(	real(rprec), dimension(nrzt), intent(in)	lu1,
		real(rprec), dimension(nrzt), intent(in)	bsq,
		real(rprec), dimension(nrzt), intent(in)	gsqrt,
		real(rprec), dimension(nrzt), intent(in)	r12,
		real(rprec), dimension(nrzt), intent(in)	xs,
		real(rprec), dimension(nrzt), intent(in)	xu12,
		real(rprec), dimension(nrzt), intent(in)	xue,
		real(rprec), dimension(nrzt), intent(in)	xuo,
		real(rprec), dimension(nrzt), intent(in)	xodd,
		real(rprec), dimension(ns+1,2), intent(out)	axm,
		real(rprec), dimension(ns+1,2), intent(out)	axd,
		real(rprec), dimension(ns+1,2), intent(out)	bxm,
		real(rprec), dimension(ns+1,2), intent(out)	bxd,
		real(rprec), dimension(ns+1), intent(out)	cx,
		real(rprec), dimension(nznt), intent(in)	trigmult )

Compute preconditioning matrix elements for \(R\), \(Z\) force.

Note that in all parameter names, x=(r,z)

Parameters

lu1
bsq
gsqrt
r12
xs
xu12
xue
xuo
xodd
axm
axd
bxm
bxd
cx
eqfactor
trigmult

Definition at line 24 of file precondn.f90.

References vmec_main::ohs, vmec_main::r0scale, realspace::shalf, vmec_params::signgs, vmec_main::sm, vmec_main::sp, vmec_main::vp, and realspace::wint.

Referenced by bcovar().

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