# I Mathematical model of a phenomenon

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1. Oct 1, 2016

### EdColider

I wanna know how can I begin to exercise the representation of a phenomenon in a mathematical model.

2. Oct 1, 2016

### jbriggs444

You could start by giving us a hint. What are you talking about?

3. Oct 1, 2016

### ramzerimar

First of all, you probably need physical principles.

4. Oct 2, 2016

### CWatters

To exercise a model one way is to feed it data and see if the model behaves the same as the real world.

5. Oct 4, 2016

### EdColider

which part you did not understand?

6. Oct 4, 2016

### Staff: Mentor

Wadda-ya-mean by the term "exercise the representation of a phenomenon in a mathematical model." As an engineering professional who has had 35 years of industrial experience developing and applying mathematical models of physical systems, I have never heard this term before.

7. Oct 4, 2016

### EdColider

I think i did not use the right words. I am from Brasil. Sorry for the bad english. What I want to understand is how someone understand physical systems mathematically.

8. Oct 4, 2016

### Staff: Mentor

Thank you very much for clarifying this. Yes, your previous post was a bit aggressive to English-only speakers. It's a classic intellectual retort to say "which word did you not understand". I've used it at times, but never at the PF.

9. Oct 4, 2016

### Staff: Mentor

10. Oct 4, 2016

### Staff: Mentor

I don't think it is about using the right or wrong words, I just think you didn't use enough of them. What physical system? What part of it are you wanting to model? For what purpose? For example, today, I modeled the energy use of a fan -- will that be helpful to you...?

11. Oct 25, 2016

### EdColider

12. Oct 25, 2016

### EdColider

@Chestermiller post in this thread helped me a lot: https://www.physicsforums.com/threa...roach-think-of-a-problem.712959/#post-4521833
Do you have a different strategy to develop a mathematical model of a physical system?

13. Oct 25, 2016