If i have matrix A=[ 1 -2 2
-2 4 -4
2 -4 4 ];
Then i want find S is orthogonal(construct by eigenbasis) and D is orthogonal diagonalization(diagonal matrix).
I construct D like this:
char=charpoly(A);
eigenvalues=roots(char);
eigenvalues=flipud(eigenvalues);
%This is matrix D
D=diag(eigenvalues);
Am i right?
Plz fix me.
Many thank
Best Answer