Very large output numbers

I have a code which gives me the output of a transfer function with giant values, but I know that they can be reduced to get something smaller but I don't know how, this would be an example of the output:

(6982830709666455*Kc*s)/140737488355328 or (6383029463564235*s^2)/2251799813685248

Answer 1

[John D'Errico]

syms Kc s
X = (6982830709666455*Kc*s)/140737488355328
vpa(X,10)

So here, 10 digits shown.

[John D'Errico]

Unfortunately, Answers is currently bugged, so all symbolic display seems to not work. Regardless, vpa is what you need.

Answer 2

[Sam Chak]

Hi @Marcos

Proper transfer function should have the degree of the numerator less than or equals to the degree of the denominator. You can probably do something like this:

s   = tf('s');
Kc  = 1;            % Enter the Gain value
G   = ((6982830709666455*Kc*s)/140737488355328)/((6383029463564235*s^2)/2251799813685248);
Gmin= minreal(G)    % after simplification

Gmin =
 
  17.5
  ----
   s
 
Continuous-time transfer function.