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Справка Scilab >> Polynomials > coeff

# coeff

polynomial coefficients

### Syntax

```C = coeff(Mp)
C = coeff(Mp, degrees)```

### Arguments

Mp

Matrix of polynomials.

degrees

vector (row or column) of selected degrees (positive integers).

C

big matrix of the coefficients

### Description

`C=coeff(Mp)` returns in a big matrix `C` the coefficients of the polynomial matrix `Mp` . `C` is partitioned as `C=[C0,C1,...,Ck]` where the `Ci` are arranged in increasing order `k = max(degree(Mp))`

`C=coeff(Mp,degrees)` returns the matrix of coefficients with degree in `degrees`.

### Examples

```s = %s;
w = s*rand(10,10);
determ(w)
coeff(w,1)

r = poly([0 -1+%i -1-%i],'s',"roots");
coeff(r)

r = poly([-1-%i -1+2*%i 0],'s',"roots");
coeff(r)```

• poly — Определение полинома через указанные корни или коэффициенты или определение характеристического полинома квадратной матрицы.
• degree — degree of polynomial matrix
• inv_coeff — построение матрицы полиномов по их коэффициентам