guess_axis.f90 File Reference

Computes guess for magnetic axis if user guess leads to initial sign change of Jacobian. More...

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Functions/Subroutines
subroutine	guess_axis (r1, z1, ru0, zu0)
	Computes guess for magnetic axis if user guess leads to initial sign change of Jacobian.

Detailed Description

Computes guess for magnetic axis if user guess leads to initial sign change of Jacobian.

Definition in file guess_axis.f90.

Function/Subroutine Documentation

guess_axis()

subroutine guess_axis	(	real(rprec), dimension(ns,nzeta,ntheta3,0:1), intent(in)	r1,
		real(rprec), dimension(ns,nzeta,ntheta3,0:1), intent(in)	z1,
		real(rprec), dimension(ns,nzeta,ntheta3), intent(in)	ru0,
		real(rprec), dimension(ns,nzeta,ntheta3), intent(in)	zu0 )

Computes guess for magnetic axis if user guess leads to initial sign change of Jacobian.

Parameters

r1	\(R\)
z1	\(Z\)
ru0	\(\partial R / \partial \theta\)
zu0	\(\partial Z / \partial \theta\)

Definition at line 10 of file guess_axis.f90.

References vmec_main::hs, vmec_params::nscale, dbgout::open_dbg_context(), vmec_params::signgs, and realspace::sqrts.

Referenced by eqsolve().

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