# fircband

Constrained-band equiripple FIR filter

## Syntax

## Description

uses the minimax filter design algorithm to design a constrained-band equiripple FIR filter
`b`

= fircband(`n`

,`f`

,`a`

,`w`

,`c`

)`b`

of length `n`

+1. You can specify the normalized
frequency points, desired amplitude of the filter response at these points, the weights used
to adjust the fit in each frequency band, and the constrained error magnitudes (ripples)
using the `f`

, `a`

, `w`

, and
`c`

arguments, respectively.

designs a minimum-phase FIR filter. You can also specify `b`

= fircband(___,'minphase')** 'maxphase'**.

produces a warning when there are potential transition-region anomalies in the filter
response.`b`

= fircband(___, 'check')

## Examples

## Input Arguments

## Output Arguments

## Version History

**Introduced in R2011a**