how to plot v=exp(-5*t​)*(-2*cos(​14*t)+(exp​(-5*t)*(0.​068*sin(14​*t)))+10);

how to plot v=exp(-5*t)*(-2*cos(14*t)+(exp(-5*t)*(0.068*sin(14*t)))+10);

[Walter Roberson]

http://www.mathworks.co.uk/matlabcentral/answers/43073-a-guide-to-tags

Answer 1

[Carlos Acosta]

First you must create a array t, this array has the posible values of t. By example, if you want plot t in the interval [0,10] with 1001 points in the interval, use the next code:

 t=linspace(0,10,1001);

Next you must calculate the value of v to each element of the vector t, use this code:

 v=e.^(-5*t).*(-2*cos(14*t)+(e.^(-5*t).*(0.068*sin(14*t)))+10);

The last command is plot:

 plot(t,v);

To get more information go to plot function's online documentation

Answer 2

[Walter Roberson]

http://www.mathworks.com/help/matlab/ref/times.html

Answer 3

[yasmin abdelaal]

For each one of the following signals:

1. x(t) = cos (2πt/5) + sin(2πt/15)

2. g(t) = e^tu(t)

3. v(t) = {2, −5 ≤ t < −1

−2sin(πt), −1 ≤ t < 0

2sin (πt), 0 ≤ t < 1

−2, 1 ≤ t < 5

Using MATLAB:

a) Plot the signal

b) Find whether the signal is power or energy signal or neither power nor energy.

c) Plot the instantons energy or power & fill the area under the curve.

d) Compute the size of the signal

[Walter Roberson]

I do not understand how this answers the question that Othman posted?

Answer 4

[Ravi]

Generate the following signal using MATLAB/Python and plot to visualize the

generated signal. Also, use the “sound” command to observe the evoked sensation.

5exp(-2t) * sin(2πft) where, f=20 Hz and total time duration 3 seconds.

[Walter Roberson]

I do not understand how this answers the question that Othman posted?

Answer 5

[Faizan Rashid]

h(t) = 2[3exp(2t)-exp(-2t)]/[3exp(2t)+exp(-2t)]

[Walter Roberson]

No, that is not valid MATLAB syntax: MATLAB has no implied multiplication. This will not solve the problem that was asked for.

[Walter Roberson]

Note that in practice you will probably need to use ./ instead of /