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ebrown

  • 2 years ago

On the first example problem for session 32 (http://ocw.mit.edu/courses/mathematics/18-02sc-multivariable-calculus-fall-2010/part-b-chain-rule-gradient-and-directional-derivatives/session-32-total-differentials-and-the-chain-rule/MIT18_02SC_we_15_comb.pdf) why is the partial derivative of w with respect to x only 3x^2+y? Shouldn't the y and z coefficients remain for the 3x^2?

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  1. poojat
    • 2 years ago
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    you are right..looks like a typo

  2. senecajim
    • 2 years ago
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    Definitely an error, not a typo. And the error is propagated throughout the rest of the solution, giving the wrong answer to the problem.

  3. Avva
    • 2 years ago
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    Page not found Sorry, the page you requested was not found. :(

  4. senecajim
    • 2 years ago
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    Avva -- Remove the "close paren" from the end of the URL. Then it loads.

  5. Avva
    • 2 years ago
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    it is written 3x^2 yz + y so it is right the error is that dw/dy = x^3 z+ y while it has to be x^3 z+ x

  6. Avva
    • 2 years ago
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    @senecajim ThnX for the hint dun know how I missed it :/

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