Comments and Ratings

Amaaazing!

You're right, this is due to the new MUPAD engine. On MATLAB versions earlier than the MuPad era the code should work fine. I will try to fix this problem as soon as possible.

If you liked this submission please rate it! :)

The model on my computer has everything you mentioned plus more (two elevator shafts, tabulated results), but there's no need to submit it here because the working principle is the same.

Putting the basic program here would make it easier to learn (less comments and lines of code to read,plus it's basically simpler). If you were joking, then you'd edit the rating, no? ;)

Ah, sorry about that. Will send an update that brings notice to this. Also, you're to be mentioned as inspiration in the code. Forgot to include that in before.

As for getting around the problem, I don't think there's a simple way to do it, so anyone without the Image Processing Toolbox should comment out lines 278 and 282. The result is missing out on the smiley face bit altogether.

Unbelievable!

The program didn't specify which Universe its physics laws adhered to.

Marco:
ed2=100 & ed3=0 --> the ball go down and go up over the start horizontal reference .
This doesn't happen. The ball goes down and bounces for a while before settling, as what should happen. Are you sure you've tested this right?

ed2=0 & ed3=100 --> the ball go down and go up over the start horizontal reference
If there's no gravity, then mass has no meaning. The ball just floats around. Of course there can't be a "ground" and zero gravity together which is why you might think the ball motion is strange.

ed2=100 ed3=100 --> the ball go down and go up over the start horizontal reference
That's not what happens. The ball bounces and settles. Setting Yv initial to 2000 makes the ball hit the ground and then rise above the start line, which is what should happen.

Start condition: ed2=0 & ed3=1 --> the ball stay up
The ball of this program is an immaginary ball, a ball without weight.
There's no gravity, so where should the ball go?

Anyway, I thought the whole point of this program was to show off a short code that produces a fun animation of some bouncing around. With that in mind, I'm adding some new features; smiley face colour, simple deformation, and spinning.

Thanks for the comments.
I've sent an update which changes the titles of the edit boxes.

Friction -> Horizontal Speed Conservation
Elasticity -> Vertical Speed Conservation

I believe this was the problem since in reality increasing friction would make the ball travel a shorter distance while in the GUI it was the opposite case. It was made this way deliberately but the choice of wording was inappropiate. Please check the updated version to see if your questions were met.

Enter [3 5 2] as values for [A B C] and you'll get messed up results. Same for [2 5 2].

Sigh.
I posted this to help people and in return got an ill-conceived accusation of being a plagiarist. Great.

Good I guess.

Wow.

Please elaborate on that accusation.

By the way, and this is completely unrelated, I had tried twice to give that particular file an acknowledgment, but the update wouldn't go through.

Title and description misleading. Says nothing about not being in English.

Don't listen to these elitists.
Good work and nice effort.

Very helpful.

Name is too long; have to manually change it to s2hms.
Other than that, pretty cool code.

I've sent an update with the following changes:

- Added H1 Line with the word 'earthquake' in it.
- Added support for vibrating multiple objects at the same time
- Added extensive input parameters check

Please download the updated version and adjust your rating.

By the way this tool can be used in a lot of ways, of which are:

- Vibrating a button or uicontrol as a form of error (like the example)
- Vibrating a line to emphasise it. You can make a listbox and vibrate a selected line from many.
- Endless possibilities in game design.

Amazing, and easy to learn too.