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yu zhang


Last seen: 8 months ago |  Active since 2022

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Add constraints to intermediate variables in the process of using least squares to minimize the objective function to fit the parameters of the equation
To fit the equation parameters using the least squares method, constraints need to be added to the variables during the calculat...

1 year ago | 1 answer | 0

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Applying the Nonlinear Least Squares Method to Minimize the Objective Function to Find the Parameters of the Equation
The liquid-liquid equilibrium data were fitted using the NRTL equation. The equation parameters of NRTL are derived from the exp...

2 years ago | 1 answer | 0

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answer