Creating an array with constant denominators

Hi I have a set of signal of cos() functions and I would like to reformat them based off of their period. I would just like to adapt the original signal to be in the form of

(num) / den

How do I combine the num and den arrays so that the output stays in the form of

(X2 * 2 *  p) / d

Below is the code, again I would just like a final array output that is

[(3*2*pi)/60  (20*2*pi)/60  (28*2*pi)/60]

clc
clear all
x=cos(540*pi*t) + cos(3600*pi*t) + cos(5040*pi*t);
A = sym([(540*pi)/5400, (3600*pi)/5400, (5040*pi)/5400]);
X = gcd(A)
X2 = A ./ X
[n, d] = numden(X)
n = n * 2
d = d * 2
num = X2 * n
den = [d d d]

Answer 1

[Shiva Kalyan Diwakaruni]

Hi,

For the output to stay in the format “(X2 * 2 * p) / d” . You can use the “displayFormula” function from Symbolic Math toolbox.

%Your Code

A = sym([(540*pi)/5400, (3600*pi)/5400, (5040*pi)/5400]);

X = gcd(A)

X2 = A ./ X

[n, d] = numden(X)

n = n * 2

d = d * 2

num = X2 * n % change this line to >>displayFormula(“X2*n/d”)

Hope it helps.

References:

https://in.mathworks.com/help/symbolic/displayformula.html