Azzera filtri
Azzera filtri

Langrage Multipliers, Ending up with huge values

2 visualizzazioni (ultimi 30 giorni)
I was trying to use langrage multipliers to solve for the minimum and maximum of the following functions; however, upon using the following commands, I end up with enormous values for the critical points, which I don't think are correct. Please help!:
syms x;
syms y;
syms w;
syms z;
f=5.0*y - 1.0*w*x - 9.0*w*y + 5.0*w*z + 10.0*x*y + x^2
g=0.06964*w*x + 0.1368*w*z + 0.1525*x*y + 0.114*x*z + 0.247*y*z + 0.3672*w^2 + 0.3393*x^2 + 0.4146*y^2 + 0.1505*z^2
Dfw=diff(f,w)
Dfx=diff(f,x)
Dfy=diff(f,y)
Dfz=diff(f,z)
Dgw=diff(g,w)
Dgx=diff(g,x)
Dgy=diff(g,y)
Dgz=diff(g,z)
syms L
assume(L, 'real')
[LSols2, wSols2, xSols2, ySols2, zSols2]=solve([Dfw==L*Dgw, Dfx==L*Dgx, Dfy==L*Dgy, Dfz==L*Dgz, g==1], [L,w,x,y,z])
-And then the values for LSols2, wSols2, xSols2, ySols2, zSols2 are all, gigantic.
  1 Commento
the cyclist
the cyclist il 14 Nov 2019
It's vastly better to post code, rather than images of code. That way people can copy & paste your code for testing.

Accedi per commentare.

Risposte (0)

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by