Gibbs2_psFunction to calculate analytic derivatives for computing d and t given p and s  | 
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| g | 
         Type: GibbsDerivs2 Description: Dimensionless derivatives of Gibbs function  | 
    
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| nderivs | 
         Type: NewtonDerivatives_ps Description: Derivatives for Newton iteration to compute T from p and s  | 
    
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