The (3 × 3) matrix A has real eigenvalues:
A=\left[\begin{array}{lll}2 & 4 & 3 \\7 & 5 & 9 \\1 & 3 & 1\end{array}\right].
Find an orthogonal matrix Q and an upper-triangular matrix T such that Q^{T} A Q=T.
The (3 × 3) matrix A has real eigenvalues:
A=\left[\begin{array}{lll}2 & 4 & 3 \\7 & 5 & 9 \\1 & 3 & 1\end{array}\right].
Find an orthogonal matrix Q and an upper-triangular matrix T such that Q^{T} A Q=T.