Quick Math Question - Lagrangian

[HP]

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

[HP]

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

[bigpooch]

You mean "Lagrange Multipliers"; link:

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

[Cueballmania]

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

[blah_blah]

[ 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

[HP]

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

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

[/ QUOTE ]

sweet, that's it