f0=1000 ; % sinusoid frequency in Hz
fs=50*f0; % sampling frequency
dt=1/fs; % sampling interval
duration=0.01 ; % duration = 0.01 seconds , which means this duration has 10 cycles
t=0:dt:duration-dt ; % time vector
sig=5*sin(2*pi*f0*t); % sinusoidal signal duration 0.01 seconds
plot(t(1:fs*2/f0),sig((1:fs*2/f0))) ; % plot of 2 cycles of the sinusoidal signal
grid
