Numerator and denominator.
Syntax
[N,D] = numden(A)
Description
[N,D] = numden(A) converts each element of A to a rational form where the numerator and denominator are relatively prime polynomials with integer coefficients. A is a symbolic or a numeric matrix. N is the symbolic matrix of numerators, and D is the symbolic matrix of denominators.
Examples
[n,d] = numden(4/5) returns n = 4 and d = 5.
[n,d] = numden(x/y + y/x) returns
n =
x^2+y^2
d =
y*x
The statements
A = [a, 1/b]
[n,d] = numden(A)
return
A =
[a, 1/b]
n =
[a, 1]
d =
[1, b]
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