Quick Math Question - Lagrangian
 

Okay so basically I have a function f(x,y)=0

And I want to find an x and y that satisfy the above equation that minimises the function g(x,y)

Seams easy, but I've totally forgotten how to do this. Something to do with Lagrangian or something?

It sucks realizing how much I've forgotten since University

Re: Quick Math Question - Lagrangian
 

eh, it so happens I can write f(x,y) as y = j(x) so I can do this now

still curious as to how to do it in general though if anyone knows

Re: Quick Math Question - Lagrangian
 

You mean "Lagrange Multipliers"; link:

http://en.wikipedia.org/wiki/Lagrange_multipliers

Re: Quick Math Question - Lagrangian
 

Calculus of variations. You want to find a function such that the functional is minimized.

Re: Quick Math Question - Lagrangian
 

[ QUOTE ]
Calculus of variations. You want to find a function such that the functional is minimized.

[/ QUOTE ]

this question definitely has to do with lagrange multipliers and not the lagrangian

Re: Quick Math Question - Lagrangian
 

[ QUOTE ]
You mean "Lagrange Multipliers"; link:

http://en.wikipedia.org/wiki/Lagrange_multipliers

[/ QUOTE ]

sweet, that's it