how to plot a continuous signal

i am unable to plot the following signal can anyone help me? x(t)=20t^2(1-t)^4cos(12*pi*t)

Answer 1

[Star Strider]

Sounds like homework ...

x = @(t) 20*t.^2.*(1-t).^4.*cos(12*pi*t);
t = linspace(0, 1);

figure(1)
plot(t, x(t))
grid

[amina sundas]

thank you and yes a part of homework.. now i gotta find its haar transform..

[Star Strider]

My pleasure.

That should be relatively straightforward with the Wavelet Toolbox.

[amina sundas]

yeah i need to update my matlab. seems i dont have wavelet toolbox.

[Star Strider]

You need it if you want to work with wavelets. (I don’t use it often enough to be comfortable dealing with Questions about it.) It’s very useful for denoising signals with broadband noise, and for isolating specific features from signals.

[amina sundas]

ahan.. im working on it, thank you for information.

[Star Strider]

My pleasure.

[amina sundas]

can you help me in another program

[Star Strider]

Perhaps.

Post it as a new Question.

[Leane Armada]

hi. can you help me with this problem ?

sketch the continuous time signal

x(t) = u(t+1) - 2u(t-1) + u(t-3)