Lagrangian multipliers - 1) Who can explain me Lagrangian multipliers with drawings scheme etc...
1)I just can't imagine what is happening in space with Lagrangian multipliers.
2) I did this problem but here also I can't ...
Lagrangian multiplier - Use Lagrangian multipliers to find the points on the ellipse with the equation x^2+xy+y^2=3 that are closest to and farthest from the origin