1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Notation question

  1. Feb 1, 2007 #1
    Hi, Just a question on notation. What does [tex]F(\frac{y}{x}) [/tex] mean?

    It is in the context of..."the differential equation [tex] y' = F(\frac{y}{x}) [/tex] can be solved dadadadada........"

    Cheers,
     
  2. jcsd
  3. Feb 1, 2007 #2
    It just means the right-hand side is a function of y/x. This could be a constant function, like F(y/x)=0, which would be trivial and silly, or something like F(y/x) = (y/x)^2 + (1/2)(y/x). Basically, if you can rearrange the right-hand side of the equation to explicitly be a function of y/x, whatever follows in your text will hold.
    For example, if you have the equation y' = x + 2, there is no way to write the right-hand side as a function of y/x. Writing it as y' = x*(y/x)*(y/x)^(-1) + 2 still includes x independently, so whatever follows that sentence in your book will not work for this type of equation.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Notation question
  1. Notation question (Replies: 3)

  2. Notation question (Replies: 2)

  3. Notation question. (Replies: 2)

  4. Question on notation (Replies: 5)

  5. Notation question (Replies: 4)

Loading...