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Can someone verify?

  1. Jul 20, 2011 #1
    Hi,
    I have a first order equation I've solved to help a friend along in another poblem. But I have not solved a DE in over 10yrs - so I just want to make sure I did it correct.
    It an IVP.

    y' = (1+1/x)y y(1) = e.

    So I come up with y = CXe^x
    (C = 1 for IV)
     
  2. jcsd
  3. Jul 20, 2011 #2

    Ray Vickson

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    You can easily check it yourself: you have y(x), and can compute y'(x), then plug these into the DE to see if they work.

    RGV
     
  4. Jul 20, 2011 #3
    Thanks Ray,
    I did this before I posted and it seemed to work. I'm just afraid if I made a mistake in one direction I made it again in the other. Like I stated, I haven't done this (any integration / derivatives or solving DE) in over a decade. I just want to know if it's correct.
     
  5. Jul 20, 2011 #4

    ehild

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    Gold Member

    It is correct.


    ehild
     
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