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Scilab Help >> Polynomials > cmndred

# cmndred

common denominator form

### Syntax

`[n,d]=cmndred(num,den)`

### Arguments

num, den

two polynomial matrices of same dimensions

### Description

`[n,d]=cmndred(num,den)` computes a polynomial matrix `n` and a common denominator polynomial `d` such that:

`n/d=num./den`

The rational matrix defined by `num./den` is `n/d`

### See also

• simp — rational simplification
• clean — cleans matrices (round to zero small entries)

### Comments

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