FIR filtering

[Peter Hansen]

LabWINC wrote:
> i'm looking for a module to implement a digital FIR filter!
> Can anyone help me?

Is this for homework, for academic interest, for a control system 
problem, or what?  Some context would be useful in helping us answer.

(The first thing that occurs to me, for example, is "why don't you just 
write it yourself? ...it's not like they're a complicated equation and 
if you have the coefficients, you practically have the code already." 
But that might not be the best approach if this is a real-world situation.)

-Peter