Gear300 Messages 1,212 Reaction score 10 Thread starter Dec 8, 2010 #1 What is the difference between the behavior of solutions that are exact and those that are not?
AlephZero Science Advisor Homework Helper Messages 6,999 Reaction score 299 Dec 8, 2010 #2 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).
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).
Gear300 Messages 1,212 Reaction score 10 Dec 8, 2010 #3 Oh...I see. I don't really see anything too special in their phase portraits either. Thanks for the reply.
Oh...I see. I don't really see anything too special in their phase portraits either. Thanks for the reply.
HallsofIvy Science Advisor Homework Helper Messages 42,895 Reaction score 983 Dec 9, 2010 #4 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".
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".