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  1. MHB Apprentice

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    #1
    $ \displaystyle y''(x)+y'(x)+F(x)=0$

    Pleas me a idea

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    #2
    Quote Originally Posted by Another View Post
    $ \displaystyle y''(x)+y'(x)+F(x)=0$

    Pleas me a idea
    Let y'(x) = v(x). Then your equation becomes v'(x) + v(x) = -F(x)

    Now you have a first degree linear ordinary differential equation. You can't write down a final answer, but there is a method by which you can write it out in terms of F(x)...

    -Dan

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