private function df_cep(model, nc, X, z0, zi, u)

df_critical

Description

Calculates the Jacobian of the critical point function F_critical.

Arguments

Type	Intent	Optional	Attributes		Name
class(ArModel),	intent(in)			::	model	Equation of state model
integer,	intent(in)			::	nc
real(kind=pr),	intent(in)			::	X(nc+4)	Vector of variables
real(kind=pr),	intent(in)			::	z0(nc)	Molar fractions of the first fluid
real(kind=pr),	intent(in)			::	zi(nc)	Molar fractions of the second fluid
real(kind=pr),	intent(inout)			::	u(nc)	Eigen-vector

Return Value real(kind=pr), (nc+4,nc+4)

Jacobian of the critical point function

Variables

Type	Visibility	Attributes		Name		Initial
real(kind=pr),	private		::	F1(nc+4)
real(kind=pr),	private		::	F2(nc+4)
real(kind=pr),	private		::	a
real(kind=pr),	private		::	dx(nc+4)
real(kind=pr),	private		::	eps
integer,	private		::	i