Finding the gradient and the hessian of the same function

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Howie
Howie 2022-11-7
评论： Torsten 2022-11-7
If I have the function
fv = @(x) x(1)^2 + x(1)*x(2) + (3/2)*x(2)^2 - 2*log(x(1)) - log(x(2));
What would be the best way to find the hessian of said function?

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KSSV
KSSV 2022-11-7
Read about gradient, hessian.
  7 个评论
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Howie
Howie 2022-11-7
Ran in:
syms x [1 2]
fv = x(1)^2 + x(1)*x(2) + (3/2)*x(2)^2 - 2*log(x(1)) - log(x(2));
%hessian(fv,x)
[x(1),x(2)] = gradient(fv)
Error using sym/gradient
Too many output arguments.
I get an error when trying to use gradient function
Torsten
Torsten 2022-11-7
Ran in:
Same way means:
syms x [1 2]
fv = x(1)^2 + x(1)*x(2) + (3/2)*x(2)^2 - 2*log(x(1)) - log(x(2));
g = gradient(fv,x)
g = 

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