Exact vs. Non-Exact Differential Equations: What Sets Them Apart?

Join the discussion
Ask a follow-up here, or get your own question answered by working scientists, mathematicians and engineers — people, not an autocomplete.
Real named experts · corrections over time · the nuance an AI answer skips
3 replies · 3K views
Gear300
Messages
1,212
Reaction score
10
What is the difference between the behavior of solutions that are exact and those that are not?
 
Physics news on Phys.org
As far as I know, the solutions don't have any special properties.

Describing an equation as "exact" just means it is easy to solve using a particular technique (i.e finding an integrating factor).
 
Oh...I see. I don't really see anything too special in their phase portraits either. Thanks for the reply.
 
There is no difference in the solutions- every "non-exact" differential equation can be made into an exact equation, with exactly the same solutions, by multiplying by an "integrating factor".