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Math Help - Contour diagram of a multivariable function

  1. #1
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    Contour diagram of a multivariable function

    Hello again. Having trouble mapping the contour or the function f(x,y)= \exp(y-x) I know i have to find range, which will be all positive values. but how exactly do I represent it on the x-y plane. And how to show level curves. Help on this will be very much appreciated
    Thanks
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  2. #2
    A Plied Mathematician
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    Well, you could always set e^{y-x}=C, where C is a positive constant. That implies y-x=\ln(C). Surely you can graph that?
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