def setup_a_alpha_and_derivatives(self, i, T=None):
        r'''Sets `a`, `kappa0`, `kappa1`, and `Tc` for a specific component before the 
        pure-species EOS's `a_alpha_and_derivatives` method is called. Both are 
        called by `GCEOSMIX.a_alpha_and_derivatives` for every component.'''
        if not hasattr(self, 'kappas'):
            self.kappas = [kappa0 + kappa1*(1 + (T/Tc)**0.5)*(0.7 - (T/Tc)) for kappa0, kappa1, Tc in zip(self.kappa0s, self.kappa1s, self.Tcs)]
        self.a, self.kappa, self.kappa0, self.kappa1, self.Tc = self.ais[i], self.kappas[i], self.kappa0s[i], self.kappa1s[i], self.Tcs[i]
def setup_a_alpha_and_derivatives(self, i, T=None):
        r'''Sets `a`, `kappa0`, `kappa1`, and `Tc` for a specific component before the 
        pure-species EOS's `a_alpha_and_derivatives` method is called. Both are 
        called by `GCEOSMIX.a_alpha_and_derivatives` for every component.'''
        if not hasattr(self, 'kappas'):
            self.kappas = [kappa0 + kappa1*(1 + (T/Tc)**0.5)*(0.7 - (T/Tc)) for kappa0, kappa1, Tc in zip(self.kappa0s, self.kappa1s, self.Tcs)]
        self.a, self.kappa, self.kappa0, self.kappa1, self.Tc = self.ais[i], self.kappas[i], self.kappa0s[i], self.kappa1s[i], self.Tcs[i]
def setup_a_alpha_and_derivatives ( self , i , T = None ) : if not hasattr ( self , 'kappas' ) : self . kappas = [ kappa0 + kappa1 * ( 1 + ( T / Tc ) ** 0.5 ) * ( 0.7 - ( T / Tc ) ) for kappa0 , kappa1 , Tc in zip ( self . kappa0s , self . kappa1s , self . Tcs ) ] self . a , self . kappa , self . kappa0 , self . kappa1 , self . Tc = self . ais [ i ] , self . kappas [ i ] , self . kappa0s [ i ] , self . kappa1s [ i ] , self . Tcs [ i ]
r'''Sets `a`, `kappa0`, `kappa1`, and `Tc` for a specific component before the 
        pure-species EOS's `a_alpha_and_derivatives` method is called. Both are 
        called by `GCEOSMIX.a_alpha_and_derivatives` for every component.
r Sets a kappa0 kappa1 and Tc for a specific component before the pure - species EOS s a_alpha_and_derivatives method is called . Both are called by GCEOSMIX . a_alpha_and_derivatives for every component .