Dear Dr.Peter Breuer,

Thank you for the response.

My area of research is analog circuit design. Following is a reviewer's comment , obtained for one of my paper submitted for a journal.

"..., but the presented method is not supported by any theorical or mathematical analysis."

Thanks.

Rohith,

Simulations ( SPICE ) are based on idealized linear equivalent equations

which perport to accurately describe our Non-Linear Universe.

So, the caveat/warning is :

Linear equations do not precisely describe our Non-Linear Real-World.

First I present the Design Algorithm ,  and Schematica, 

then the Linear Simulation results,

then Measurements taken from real-world real-time measurements.

Lastly,

I may provide some equations, in an appendix,

however, I have found that real Engineers know equations very well.

I am still updating my project ( which you are following )

with an eye on the above approach to documentation.

My imagination is constantly seeing some new thing to

add which will make the project better. 

Spice allows me to test my ideas , quickly,

and hopefully stay on the best track.

Hope that helps,

Glen Ellis

http://www.geocities.ws/glene77is/

Thank you very much, your answer is helpful.

Thank you Dr. Peter Breuer.

The quote  given above is just copy pasted from the reviewer comment. They may mean theory, you are right.

In my paper, I explained the method, the design algorithm, followed by examples with simulation result.

Thanks,

Rohith

Dear Rohit,

I think that theoretical part is important as well, though I was not your reviewer :)  Without theoretical support it might seem that it was just a luck that helped you to get good results ... or that you selected between obtained results only those convenient to your aim. 

I suggest: in the "search window" here on RG choose "publications", typeset keywords "circuit design algorithm" and ENTER. That will give you a large number of papers or conference papers from your field. Many of them are free, you can download, and learn from others to include a right theory in your papers. 

Thank you dear Dr. Viera Čerňanová,

Your points are helpful.

Hi, Mostly IC works related with kind of simulation. But you can highlight the improvement in your works wrt mathematical calculation. i am not clear on what aspects you are asking an explanation. Simple way, you can refer the previous works and just follow what they did and quote the same in your article to claim the betterment. hope it will help you a bit. Best wishes for your publication.

Thank you dear Shobha Mohan.

I think the journal template you intend to publish will guide you. But generally it takes this pattern; Title, Authors name(s),  keywords, abstract, introduction follow by review of related research regarding the work, the method used to obtained the results, the result presentation/discussion and finally conclusion.

Your main contribution to knowledge should be clearly stated. 

Thank you dear Dr. Ogri James Ushie

Thank you dear Bandi Mallikarjuna Reddy.