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// The main function test the ffilt function
// ffilt->returns the coefficients of FIR low pass filter
function main()
ft="sb"; //ft is the type of filter
ni=5; //ni is the number of filters sample required
fc=0.2; //low frequency cutoff
fh=0.9; //high cutoff frequency
xi=ffilt(ft,ni,fc,fh);
disp(xi);
endfunction
//output
// 0.2449143 0.4898285 - 0.4 0.4898285 0.2449143
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