zpch2

Scilab Function
Last update : April 1993

zpch2 - Chebyshev analog filter

### Calling Sequence

  `[zeros,poles,gain]=zpch2(n,A,omegar)`

### Parameters

- `n` : integer : filter order
- `A` : real : attenuation in stop band (`A>1` )
- `omegar` : real : cut-off frequency in Hertz
- `zeros` : resulting filter zeros
- `poles` : resulting filter poles
- `gain` : Resulting filter gain

### Description

Poles and zeros of a type 2 Chebyshev analog filter gain is the gain of the filter

    H(s)=gain*poly(zeros,'s')/poly(poles,'s')

### Author

F.D.