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  • one year ago

In the problems for session 38, how is the gradient of T = <1,2,2> rather than <2,4,4>?

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  1. phi
    • one year ago
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    If all you want is the direction of the gradient, you can factor out any common value. (or, often it's nice to normalize the gradient vector to unit length ) However, they make a mistake by not using <2,4,4> to calculate the actual change in w as you move a specific distance and direction. For this problem, you must use the correct magnitude and direction of the gradient.

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