I am an electrical engineer newly trying out Maxima to manipulate control system and filter equations.? Part of the manipulation is to form the equation into an "engineer readable" format.? The following has me stumped (b subscript n is written b_n):
Given an equation of the form
(b_n*s^n + b_(n-1)*s^(n-1) + .... b_1*s + b_0) / (a_n*s^n + a_(n-1)*s^(n-1) + .... a_1*s + a_0),
how
would I go about dividing the numerator and denominator by a_n (such
that the s^n term in the denominator is always multiplied by 1)?
Neither a_n nor the value of n is known beforehand.
I have spent several hours trying to find Maxima operators to perform the needed division (or supportive operations) and am not finding what I need.