samer@34: function [y,phi]=block(o,phi,n,f)
samer@34: % block - generate sawtooth wave
samer@34: 	
samer@34: t=round(1/f);
samer@34: y=mod(phi+(0:n-1)/t,1);
samer@34: phi=mod(phi+n/t,1);
samer@34: