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Math Help - How do I perform Implicit Differentiation in MathCad?

  1. #1
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    How do I perform Implicit Differentiation in MathCad?

    I am trying to use MathCad to solve an implicit differentiation but I have no idea how I could do it. It seems to only solve a normal differentiation with only one variable.

    I defined this...
    f(x, y) := x^2 + y^2

    and then differentiated it with respect to x but I get...
    d(f(x, y)) / dx -> x^2

    I thought I should expect..
    d(f(x, y)) / dx -> x^2 + 2y(dy/dx)

    How do I get MathCad to work properly with implicit differentiation?
    Thanks!
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  2. #2
    Junior Member RHandford's Avatar
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    Hi

    Not sure if this will help you.
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  3. #3
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    Oct 2010
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    Thanks! The article tells me exactly what I need.
    Thanks a lot!

    Also, I just realise I had a typo in my previous post. :P
    and then differentiated it with respect to x but I get...
    d(f(x, y)) / dx -> 2x

    I thought I should expect..
    d(f(x, y)) / dx -> 2x + 2y(dy/dx)
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