Here's my idea: Find the eigenvalues of the matrix A and put them into a diagonal matrix.
Since a diagonal matrix is both upper and lower triangular, it's triangular.
Is there anything wrong with this idea?
We have the following matrix :
How can I found a triangle matrix similar to the initial matrix.
I was pleased if someone show me the step by step solution because I have 2 more matrices to do exactly the same procedure.
Thanks in Advance