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.TH ffilt 1 "April 1993" "Scilab Group" "Scilab Function"
.so ../sci.an
.SH NAME
ffilt - coefficients of FIR low-pass
.SH CALLING SEQUENCE
.nf
[x]=ffilt(ft,n,fl,fh)
.fi
.SH PARAMETERS
.TP 10
ft
: filter type where \fVft\fR can take the values
.RS
.TP 5
"lp"
: for low-pass filter
.TP
"hp"
: for high-pass filter
.TP
"bp"
: for band-pass filter
.TP
"sb"
: for stop-band filter
.RE
.TP
n
: integer (number of filter samples desired)
.TP
fl
: real (low frequency cut-off)
.TP
fh
: real (high frequency cut-off)
.TP
x
: vector of filter coefficients
.SH DESCRIPTION
Get \fVn\fR coefficients of a FIR low-pass,
high-pass, band-pass, or stop-band filter.
For low and high-pass filters one cut-off
frequency must be specified whose value is
given in \fVfl\fR. For band-pass and stop-band
filters two cut-off frequencies must be
specified for which the lower value is in
\fVfl\fR and the higher value is in \fVfh\fR
.SH AUTHOR
C. B.
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