Gradient function with multiple variables?

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Eric Hemp
Eric Hemp 2017-4-2
回答： Torsten 2017-4-3
In my program I am asking for user input for a 3 dimensional vector X. My example equation is Y=X(1)^3+2*X(2)^2+4*X(3). Now I want to calculate the gradient of the equation. My initial thought was to do gradient(Y, [X]) but that creates an error. I've also tried gradient(Y, [X(1), X(2),X(3)]). Any help would be greatly appreciated.

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回答（1 个）

Torsten
Torsten 2017-4-3
https://de.mathworks.com/help/symbolic/gradient.html
The first example should show you how to set up your code.
Best wishes
Torsten.

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