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HelmholtzEquationOfStateOfPureFluidsBySpanEtAlPhiR_deltatau_OfReducedVariables Method

Calculates the derivative of the residual part of the dimensionless Helmholtz energy with respect to the reduced density delta and the inverse reduced temperature tau.

Namespace: Altaxo.Science.Thermodynamics.Fluids
Assembly: AltaxoCore (in AltaxoCore.dll) Version: 4.8.3179.0 (4.8.3179.0)
Syntax
C#
public override double PhiR_deltatau_OfReducedVariables(
	double delta,
	double tau
)

Parameters

delta  Double
The reduced density.
tau  Double
The reduced inverse temperature.

Return Value

Double
First derivative of the residual part of the dimensionless Helmholtz energy with respect to the reduced density delta and the inverse reduced temperature tau.
See Also