How are partial differential equations used to model physical systems?

[hazzzon]

Plese give me silminer simple example or anther example on this case or explein the steps

 

[dextercioby]

The first 2 pages are almost uninteligible and seem unrelated to the content of page 3. So what exactly do you want ?

 

[hazzzon]

hi my frind ples tel my the eplen of all step this is PDE VARATION OF PARAMETER

 

[hazzzon]

Yes just i neeed explen varatin of parameter in pde