Hello, welcome to maths with Jay.
We're going to be finding the
eigenvalues of a two-by-two matrix We'll
start by entering the matrix - it's two by
two - and we'll call it A. So I'm using the
tab button to input the values here.
Negative six and two, so there's our
matrix, so after we've selected it, we go
to the algebra menu: eigenvalues And
what it does: is it lists the eigenvalues
and then tells us how many of
each we have. Well we've got a two by two
matrix so we're only expecting a maximum
of two, and so the list showing eight and
negative one shows us the eigenvalues,
and the second list is just showing us
that we've got one of each of those
eigenvalues, so our eigenvalues are
eight and negative one. Next time we'll
have a look at how to find the
eigenvectors
