casc

casc — cascade realization of filter from coefficients

Calling sequence

[cels]=casc(x,z)

`x`	: (4xN)-matrix where each column is a cascade element, the first two column entries being the numerator coefficients and the second two column entries being the denominator coefficients
`z`	: string representing the cascade variable
`cels`	: resulting cascade representation

Creates cascade realization of filter from a matrix of coefficients (utility function).


x=[1,2,3;4,5,6;7,8,9;10,11,12]
cels=casc(x,'z')