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Thread: Differential equation of function composition of two variables.

  1. #1
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    Differential equation of function composition of two variables.

    Morning All.

    I have a system I am completely stuck on.

    Differential equation of function composition of two variables.-codecogseqn.gif


    I need find a numerical solution of this system, like f(x(t),y(t)) = ...


    Any Help

    Regards
    Last edited by Sall; Feb 28th 2017 at 01:25 PM.
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  2. #2
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    Re: Differential equation of function composition of two variables.

    You cannot find a numerical solution for a differential equation without some specific "initial" or "boundary value" conditions.
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  3. #3
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    Re: Differential equation of function composition of two variables.

    I don't have a boundary value. For real, this equation represent the temperature variation in the time, so y(t) is the temperature variation in the fisrt tank and x(t) is the temperature variation in the second tank, both have a time variation.
    So the inicial value is y(0)=y1 and x(0)=x1, but the boundary value I don't know for sure what it is.
    Can you help me?
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