Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Lagrange Multipliers basics

  1. Nov 16, 2006 #1
    I've just started multi dimensional calculus, among which Langrange's Multipliers. I have some questions which will help me grasp the concepts since I'm a very curious guy...

    a) What are you finding exactly with this technique?
    b) What is the constraint?
    c) What does the extra variable represent?
    d) Is there another more intuitive but less effiecient way to obtain the same result?

    My lecturer is a very poor teacher and just wants to get on with the syllabus I guess... I would like an explanation on the actual graph of the function and not about the practical usage of it such as in economics...

    P.S. I understood the reasoning behind partial differentiation but I'm still shakey on the fact that to differentiate a plane you can only find a general gradient for each axis (y and x) and not a single general gradient function f'(x,y).

    Thanks!
     
  2. jcsd
  3. Nov 16, 2006 #2

    Office_Shredder

    User Avatar
    Staff Emeritus
    Science Advisor
    Gold Member

  4. Nov 16, 2006 #3
    Already been there... I was looking for something different...
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?



Similar Discussions: Lagrange Multipliers basics
  1. Lagrange multipliers (Replies: 3)

  2. Lagrange Multipliers (Replies: 1)

Loading...