FeOs v0.9.5

import feos

# Build an equation of state
parameters = feos.Parameters.from_json(['methanol'], 'parameters.json')
eos = feos.EquationOfState.pcsaft(parameters)

# Define thermodynamic conditions
critical_point = feos.State.critical_point(eos)

# Compute properties
p = critical_point.pressure()
t = critical_point.temperature
print(f'Critical point for methanol: T={t}, p={p}.')

Critical point for methanol: T=531.5 K, p=10.7 MPa.

// some imports omitted
use feos::core::parameter::{IdentifierOption, Parameters};
use feos::core::{Contributions, State};
use feos::pcsaft::PcSaft;

// Build an equation of state
let parameters = Parameters::from_json(
    vec!["methanol"],
    "parameters.json",
    None,
    IdentifierOption::Name,
)?;
let eos = &PcSaft::new(parameters);

// Define thermodynamic conditions
let critical_point = State::critical_point(&eos, None, None, None, Default::default())?;

// Compute properties
let p = critical_point.pressure(Contributions::Total);
let t = critical_point.temperature;
println!("Critical point for methanol: T={}, p={}.", t, p);

Critical point for methanol: T=531.5 K, p=10.7 MPa.