Jump to content
Sign in to follow this  
Crash

Algebra....

Recommended Posts

Im Having diffuculty in working out the nullity of a matrix, the matrix is

 

a=[ 1,-1,1;-1,1,-1;1,-1,1]

to find the nullity i was finding the eigenvalues and than working out the nullspace and than working out its dimension, is this correct? the other problem with this is i get to the polynomial equation from det(A-Lambda.I)=0

which ends up being -x^3 + 5x^2 -5x -1 which i dont think is correct, can someone please help.

 

also can someone explain to me what multiplicity is?

 

Cheers

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Sign in to follow this  

×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.