# MATLAB: How do you find the lagrange multipliers

1. ### math8

161
When I try to solve a linear program using matlab,after using linprog(f,A,b,...) I can find the Lagrange multiplier associated with the inequality constraints and the lower bound constraints by using:

lambda.ineqlin ; lambda.lower

But if I want to solve a quadratic program (using quadprog(H,f,A,b,...)), then how do I find the Lagrange multipliers?

I can see that to find the solution, you can use:

but the result for lambda, which I thought would give me the Lagrange multipliers, instead, itgives me a list of matrices sizes.

I don't understand that result for lambda.

How do I find the Lagrange multipliers for a quadratic program in Matlab?

161
Thanks!!