EXPERIMENT - 6

AIM

To plot Continuous and Discrete Sine Wave in MATLAB.

THEORY

The sine wave or sinusoid is a mathematical curve that describes a smooth repetitive oscillation. It is named after the function sine, of which it is the graph.It occurs often in pure and applied mathematics, as well as physics, engineering, signal processing and many other fields. $y(t)=sin(2\pi t)$

MATLAB COMMANDS USED

* plot(x,y,color,properties)
* stem(x)
* sin(t)

MATLAB CODE

%The Code is for continuous sine wave
t=0:0.01:2;
y=sin(pi*2*t);
subplot(2,1,1);
plot(t,y,'b');
xlabel('time in seconds');
ylabel('Sine wave amplitude');
title('Plot of sin(2\pit) continuous
wave from 0 to 4\pi');

%Discrete Sine wave 
n = 0:1:40;
y= sin(.1*pi*n);
subplot(2,1,2);
stem(n,y,'b','filled');
xlabel('n i.e. Sample number');
ylabel('Sine wave amplitude');
title('Plot of sin(2\pin) discrete wave 
from 0 to 4\pi with 41 samples');

print('Sine Wave','-dpng')

RESULT

The Continuous and Discrete versions of Sine Wave has been plotted.