# Math Help - one place vector valued recurrence relation

1. ## one place vector valued recurrence relation

$xk+1 = -5xk + 4yk yk+1 = -12xk + 9yk$

subject to v0 = (x0 y0) = (1 1)

If someone could walk me through the steps, or give me any help at all, that would be great.

2. Originally Posted by OnMyWayToBeAMathProffesor
$xk+1 = -5xk + 4yk yk+1 = -12xk + 9yk$

subject to v0 = (x0 y0) = (1 1)

If someone could walk me through the steps, or give me any help at all, that would be great.
Try rewritting this so people can understand it.

If you can't be bothered to learn LaTeX properly treat the subscripts as arguments, so you would write $x_{k+u}$ as $x(k+u)$

CB

3. Just to rewrite: $x_{k+1}=-5x_k+4y_ky_{k+1}=-12x_k+9y_k$ Is this correct? ("x_k" produces " $x_k$" and "x_{k+1}" produces " $x_{k+1}$" in LaTeX.)

What do you need to do in this problem?