Interested

Yes we can use like Matlab but only we can write input data for 60 lines for free version in EES software

Dear Kunduru

Thanks for your reply, but I think you don't understand my question well.

I mean that Can I write a program in EES and use it in matlab as a function? NOT writing function in EES

The solution depends on the question effort versus speed. Do you look for a quick solution executed rarely or do you look for a professional solution as required for optimisations?

Matlab can call EES function in different ways.

• per call to EES (command) and interpretation of the output generated by $EXPORT command
• By DDE
• By direct linkage of the dll, containing the function

Question: Which function of EES are you interested in?

Dear Wolfgang

Thanks for your reply

I don't exactly understand your explanations and methods

As we use matlab functions: input variables>>> output result from a function, for example:

[z1,z2]=func(x,y)

I want to use an EES program as a function in matlab to do a multi-objective optimization

For example i want to give P and T and get efficiency and cost

How can i do that?

I'm prefer to convert the functions ( that integrated in EES) such as enthalpy vs. temp. or density vs. pressure as a polynomial functions , and then use them in Matlab.