# Thread: what is the use of phase portraits?

1. ## what is the use of phase portraits?

hi,
i have to write a paper on phase portraits , and would much apprreciate some help on the following questions...

why do we use phase portraits?
what informations dose it provide?
why do we need to know the techniques of producing/sketching phase portraits without using mathematical softwares that can generate phase portraits?

thank yo for any help u can provide?

2. Originally Posted by crb
hi,
i have to write a paper on phase portraits , and would much apprreciate some help on the following questions...

why do we use phase portraits?
what informations dose it provide?
why do we need to know the techniques of producing/sketching phase portraits without using mathematical softwares that can generate phase portraits?

thank yo for any help u can provide?
The phase portrait gives information about solutions to a differential equation even if we cannot solve the equation itself. For example, closed paths indicate periodic solutions.