Question

Anybody working on Solid of Revolution Problems?

Answer 1

I can work that kind of problem. What's the question?

Answer 2

I've be tweaking cool program that can help visualize solid of revolution.Check it out
http://www.sagenb.org/home/pub/2632/

Answer 3

Give me a country minute or so to look at it...

Answer 4

Looks like you take the graph\[y = 9 - x ^{2},\]
\[x \in [0,3],\]
and revolve about the y,axis.

Answer 5

No this is default, but you can change it

Answer 6

Am I right about the solid?

Answer 7

Yes,can you see the picture(pan around the 3D)

Answer 8

When I looked at the attachment I saw only programming code.

Answer 9

damn

Answer 10

Is there a wa

Answer 11

y to execute it?

Answer 12

Yes, but server to backed up to do anything

Answer 13

Drat:^(

Answer 14

Can you execute it on wxMaxima?

Answer 15

I don't think so but I never tried it

Answer 16

You can download it from Wolfram Alpha. It's open-source software and as such is public domain.

Answer 17

I gotta figure out how to make it work when the server is free

Answer 18

The server has been glitching up a lot lately.

Answer 19

One problem I deal with continually now occurs whenever I click an unanswered question. The same question pops up no matter whose question I click on.

Answer 20

This is what pops up:
Can someone tell me what the button the prof is hitting to run the
programs. For example on Lecture 2 of Programming 6

Answer 21

At times I need to ask the student to type the question again so I can refer to it without hunting it down every time I need to refer to it.

Answer 22

Once in a while I need the student to retype the question so I don't have to hunt it down whenever I need to refer to it.

Answer 23

I think there more people here than the server can handle

Answer 24

Getting back to the problem:
If the solid is gotten by revolving the region in Quadrant I bounded by x = 0, y = 0, and
y = 9 - x^2 about the y-axis, and we are to find its volume, then we can set up a single integral using the disk method or the cylindrical shell method.

Answer 25

go to http://www.sagenb.org/

log in with
username:Solid
Password : revol

Once you are in click Solid

Answer 26

Logged in. Solid is not live. No response when clicked on.

Answer 27

Try panning the 3D graph

Answer 28

Looking through published documents. Long list. How do I pan 3D graph?

Answer 29

move the graph while clicked

Answer 30

Trying it now...

Answer 31

Failed. Server sent no data.

Answer 32

Let's see if we can work with this out using just pencil and paper. It looks like we revolve the region in the first quadrant bounded by y = 0,
x = 0, and y = 9 - x^2; and we are to find the volume of the resulting solid.

Answer 33

I know how to do this, I am just trying to make program work

Answer 34

The conditions under which we are currently working are making it a challenge, so we may need to hammer away at it for a while.

Answer 35

There may be compatibility issues on my end as well.

Answer 36

I will continue my search in the long list of published documents.

Answer 37

Thanks

Answer 38

Creating a new worksheet. Waiting for it to materialize. Will paste your attachment to it when it does.

Answer 39

Your code is now pasted on the new worksheet, titled Solid.

Answer 40

This Sage Notebook software is new to me, so I need to experiment with it awhile and get it to respond with some sort of output. You mentioned something about panning over the graphic image.
Looking for that command...

Answer 41

I got it to draw the graph. It's faint, but it's there.

Answer 42

It drew the part of the parabola y = 9 - x^2 that lies at or above the x-axis.

Answer 43

If I click the small black arrow in the Action box, I can have all cells evaluated and I will get a graphic output.

Answer 44

It's not 3d yet. The code probably needs to be tweaked, like you mentioned earlier.

Answer 45

Let me see what I can do with wxMaxima...

Answer 46

My plan is to get the maxima to do what I want it to. Then I go back to your code and try tweaking it in an effort to get it to do the same as Maxima.

Answer 47

Yeah, I was just helping someone with solid of revol and it would be great to have something like that

Answer 48

paraboloid.png

Answer 49

What did you use?

Answer 50

paraboloid.png