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IniquiTrance
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My textbook is using Lagrange multipliers in a way I'm not familiar with.
F(w,λ)=wCwT-λ(wuT-1)
Why is the first order necessary condition?:
2wC-λu=0
Is it because:
[itex]\nabla[/itex]F=2wC-λu
Why does [itex]\nabla[/itex]F equal this?
Many thanks!
Edit: C is a covariance matrix
F(w,λ)=wCwT-λ(wuT-1)
Why is the first order necessary condition?:
2wC-λu=0
Is it because:
[itex]\nabla[/itex]F=2wC-λu
Why does [itex]\nabla[/itex]F equal this?
Many thanks!
Edit: C is a covariance matrix