samer@34: function [y,phi]=block(o,phi,f)
samer@34: % block - generate sine wave
samer@34: 
samer@34: u=cumsum([phi,f],2);
samer@34: y=sin(2*pi*u(:,1:end-1));
samer@34: phi=mod(u(:,end),1);
samer@34: