- #1

cobraa_eyz

- 3

- 0

## Homework Statement

Dear all ,

Am new to matalb and am having some couple of problems. i want to convert the following wave form from time to frequency domain .

1.E=ACos(ωt+φ).[0,T]

I have made conversion by using integration by parts.Please find the MATLAB attached files.

ACos(ωt+φ)*exp(-jωt) , limit [0,T]

2. For T=n*pi/2ω where n= odd, how to generate odd values of "n".

3. Graph

When ever i try to plot a graph between Amplitude and Time , it generates error or when ever i plot a graph between two variable values e.g

T 1:45;

Pi 0:360;

"? Error using ==> mtimes

Inner matrix dimensions must agree."

## Homework Equations

## The Attempt at a Solution

T=n*pi/2w where w= omega

function L=laser()

%T=n*pi/2w where w= omega

w=2*pi*1.93*10^14;

phi= 0:360;

T=45;% just used to plot a graph

L= (-cos(phi)*w*sin(w*T)*exp(-j*w*T))+(w*cos(phi))-sin(phi)*(w*cos(w*T)*exp(-j*w*T)-w+ (w^2)*sin(w*T)*exp(-j*w*T)/(1+w^2))

subplot(1,1,1), plot(phi,L);

end

Thanks