9:54 AM
Matt Goeke: Join me in this Chat.
Russell Blyth: hi
Michael Siddoway has joined this chat.
9:55 AM
Michael Siddoway: Good Morning!
Joyce Quella: Did you already post the vnc address?
Russell Blyth: Hi, MS did the download work from website?
Russell Blyth: VNC address is the same
Russell Blyth: 165.134.131.96
Mike May: 165.134.131.96 in case you need to retype
Russell Blyth: 
Russell Blyth: Video is up
Joyce Quella: Quicktime URL?
Derrick Head: David Thomas needs you to invite him to join the chat
Regina Souza: I have not been able to deal with the hw worksheets (because 
seemly one needs to use BinHex4.0 to convert it to the appropriate format)
Steve Prothero: Waiting for Quicktime URL
Mike May: rtsp://165.134.240.35/LA050628am1.sdp
Steve Prothero: Thanx -- You guys look well rested.
Mike May: We are going to restart the video
Frank Rooney: I had the same problem. WinZip will translate the binhex stuff
10:00 AM
Mike May: Video and sound up
Harry Mills: Huh. I thought it was... Oh. Binhex. A Mac thing.
John Boncek has joined this chat.
Luz DeAlba has joined this chat.
Harry Mills: Unable to find "Equation" in Maple Help
Parviz Khalili: I am ok.
Regina Souza: To QuaternionR - How do you use WinZip?
Russell Blyth: All OK?
Christian Hellings: I still have no audio.
Dennis Keeler: a lot more background noise today
Leah Wrenn Berman has joined this chat.
Leah Wrenn Berman: morning
David Thomas has joined this chat.
Frank Rooney: Just download an evaluation copy. It extracts zip files.
Steve Prothero: Background noise sounds like some kind of machine in the 
distance?
John Boncek: Quicktime URL for today is?
Mike May: rtsp://165.134.240.35/LA050628am1.sdp
Leah Wrenn Berman: sound working now
Harry Mills: Is the command "Equation" something special? I could probably 
decipher it given enough time.
10:05 AM
Michael Siddoway: RB,When I click on the "Maple 10" icon at the website I get 
only text.
Dorothy Zeiser has joined this chat.
Russell Blyth: have to right click and force download
Regina Souza: to QuaternionR: If I had it already in my computer, where would I 
find it? How would I use it? (Chances are I have WinZip)
Russell Blyth: otherwise junk loads in browser window
Russell Blyth: if it makes it a text file after download, edit the file name in properties 
to remove the .txt suffix - change it to .mw
Russell Blyth: or .mws
Michael Siddoway: OK. It works. I realize you instructed us in this direction before. 
Catching on...
Russell Blyth: is OK 
Frank Rooney: If it's on your computer, double clicking on the file with the .hqx 
extension should bring it up.
Regina Souza: i'll try. It had an mw extension...
Regina Souza: got it! Thanks a lot!
Marius Buliga: the audio has a lot of background noise.
Frank Rooney: 
10:10 AM
Mike May: yes, we're not sure why - we'll try to work on it
Marius Buliga: ok, thank you.
10:15 AM
Harry Mills: Nice. De-mystifies change-of-basis exercises. Like your pedagogy
Luz DeAlba has left this chat.
Tepper Gill has joined this chat.
Tepper Gill: thanks
Mike May: Hi - TG, you have video but no sound?
10:20 AM
Luz DeAlba has joined this chat.
Tepper Gill: yes
Mike May: OK, and vnc?
Mike May: Video to change
Mike May: we're up on am2
Luz DeAlba: Hi, had no video or sound until now!
Mike May: Any issues?
Tepper Gill: I get nothing on the vnc and sound
John Boncek: audio is rising and falling (loud-to-soft)
Leah Wrenn Berman: sound is fading in and out
Tepper Gill: what is url
Mike May: vnc address is 165.134.131.96
10:25 AM
Mike May: for video we're atrtsp://165.134.240.35/LA050628am2.sdp
Mike May: it might be worth trying the port 80 connection for video...
Mike May: rtsp://165.134.240.35:80/LA050628am2.sdp
Regina Souza: Is it possible to get two graphs side by side? As in: one 
would display the two planes, the other would display the line of 
intersection of the two planes (side by side, for comparison)
Harry Mills: OK.. "Equation" is part of geom3d package.
Mike May: HM, yes
Tepper Gill: I am ok now
Mike May: OK!
Regina Souza: That is neat. Thanks!
Regina Souza: It would be useful also when talking about the image of linear 
transformations. In one displays the points in the domain, in the other we would 
display the points in the image.
Harry Mills: Seems to me you already showed us something like that with a 2x3 
matrix acting on a random set of points in R^3 and displaying the image of those 
points in R^2
Leah Wrenn Berman: is proc( ...) like a function?
10:30 AM
Mike May: yes
Regina Souza: Yes, I was just talking about displaying the images side by side for 
comparison.
Suzanne Riehl: Are the "homework" worksheets available on the web? I seem to 
have better luck getting them from there rather than from an email attachment.
Harry Mills: I just figured that out, Regina. ) Integrating what was done previously 
with the new display skills we're seeing now...
Mike May: yes, go to the transcript page, where they are worked out already
Harry Mills: ... name the separate plots, followed by :%; That way, you will see 
them, instead of a bunch of data.
Regina Souza: very neat!
Harry Mills: FYI: I'm only now seeing two planes. VNC is lagging significantly.
Leah Wrenn Berman: audio is very faint
John Boncek: audio is fading in and out -- can't hear you
Matt Goeke: may lose sound for a moment
10:35 AM
Luz DeAlba has left this chat.
10:40 AM
Parviz Khalili: That is really neat
Harry Mills: ".m" to save functions AND procedures?
Parviz Khalili: Can we highlight the point of intersection?
Leah Wrenn Berman: that would be tricky, though---suppose there isn't 
one?
Harry Mills: ".m" to save procedures, as well?
10:45 AM
Harry Mills: Sound cut out just as you were answering ".m" question.
Leah Wrenn Berman: for me too
Dennis Keeler: i've lost sound too, but not video
Christian Hellings: me too
Mike May: sound will be back shortly
Harry Mills: Type in a simple "yes" or "no"?
Russell Blyth: yes
Russell Blyth: sound out
Harry Mills: Thx.
Mike May: The save command lets us save procedures and constants.
Russell Blyth: need to take a video break anyway
Russell Blyth: back soon
Parviz Khalili: sound is out here
Tepper Gill: no sound
Mike May: In the case we did, colors is a list, a constant
Mike May: 'part of the reason for the restart was to check what was being saved.
Mike May: Since Maple remembers things from earlier in the session, there is a 
hazard for doing saves.
Mike May: You can easily use a value that you defined in the session and forgot 
about.
Mike May: I often do examples and when I turn them into procedures, I forget 
some place where the details are defined.
Mike May: THe worksheet We did restarts and then checks with copied stuff.
Mike May: It lets me check that I am doing what I think I am doing.
Russell Blyth: video should be back
10:50 AM
Mike May: I did the same trick on the save and read.
Christian Hellings: I hear you.
Regina Souza: ok
Christian Hellings: Same background noise still
Christian Hellings: But its okay
David Thomas: Sound good
Parviz Khalili: I have no sound no voice
John Boncek: no audio at all here
Russell Blyth: restart QT
Leah Wrenn Berman: my issue wasn't so much the quality but that I 
had to keep restarting the stream to keep getting sound
Harry Mills: Ah so.. There's the PLANE you were talking about yesterday.
Harry Mills: I REALLy like your whole "random inputs" with Maple approach.
Parviz Khalili: I put URL it says not found
Matt Goeke: The URL isrtsp://165.134.240.35/LA050628am3.sdp
10:55 AM
Michael Siddoway: This answers a question I had yesterday
Regina Souza: we could use this also to illustrate the orthogonality of the 4 
subspaces: Null(A) and Range(A^T), and Range(A) and Null(A^T)
Lynne Doty: It's very easy to twist the display to get and end-on view of the 
plane--shown as a line with the normal vector
David Thomas: I would find it helpful for you to tell us the name of the file you are 
about to open
Harry Mills: You mean vectors.mw, not "wm" )
11:00 AM
Regina Souza: I really like your ideas to produce different "raw data" to do an 
exercise. (At least should prevent blind copying.)
Mike May: DT and all: the name of the file is on the top of the open Maple window, 
in case we forget to tell you
11:05 AM
John Boncek: Does one have to purchase the Maple manuals to get a detailed 
list/description of everything in the packages? (E.g. What exactly is in "Student"?)
Mike May: There's a lot of stuff in help
Mike May: We can say more about that when Mike is done with this WS
Regina Souza: Would it be too hard to get the projections to the coordinate planes 
as dashed lines? (Which we usually do when we are representing it "by hand" on 
the board)
Mike May: there are various line styles, including dashed and dotted - one can 
check options under plot3d in help to see exactly how
Regina Souza: That's exactly what I was looking for to illustrate the difference 
between basis (collection of vectors), span (`space') and dimension (an integer). I 
find these concepts are collapsed in student's minds in the beginning
Harry Mills: Idea: Also plot the original vectors as harpoons and "display" linear 
combos and originals together.
11:10 AM
Mike May: Harry, that sounds like a nice idea.
Parviz Khalili: I guess we can use the same to ceate Parallelpiped.
Mike May: It is simply a matter of starting with three vectors in R3 rather than 2 
vectors in R2.
Mike May: One of the nice features that we can't show because of the overhead is 
too high
Leah Wrenn Berman: my audio cut out before the green sign went up--
-is this a video switch or did something break?
Mike May: rtsp://165.134.240.35/LA050628am4.sdp
Harry Mills: Back up.
Parviz Khalili: I am fine
Regina Souza: MM, are you saying we can't repeat the same trick with vectors in 
R^3?
Mike May: To my last comment, I like live rotation. It is very effective.
Regina Souza: l.i. vectors, I mean
Mike May: No, we can. I just can't show it over the net with all the other things we 
are running.
Hugh Sanders: OK
Regina Souza: got it
Dennis Keeler: better sound
Steve Prothero: Better
Christian Hellings: better
Frank Rooney: better
Joyce Quella: Sound good
11:15 AM
Harry Mills: I'm "back up". But also, y'all're standin' a little close...
Michael Siddoway: OK here
Leah Wrenn Berman: sound keeps cutting in and out here
Harry Mills: What's deceptive is the need to look within a package if a command 
is part of the package. "?Student" gives the package description and then you can 
browse the other commands. For instance,
Harry Mills: "Equation" doesn't show up in "raw help" if you look with the 
"?Equation" command
Mike May: right
Harry Mills: But "Equation" DOES show up as a hyperlink in "geom3d" help.
Mike May: if the ? method does not work, can always use Help menu
Leah Wrenn Berman: I get lots of links under the help menu for 
Equation
Mike May: yes, that search is more thorough, sometimes too many choices
11:20 AM
Harry Mills: Duh. OK. I'm just in the habit of the old "?name" kind of help. Quite 
right & thx.
John Boncek: That's one of my concerns. Many of my students are timid when it 
comes to computers and computing. For an experienced user, the help facility is 
quite nice. For a beginner, it can be intimidating.
John Boncek: And to be honest -- if I'm not sure about something in Maple, I 
usually Google first, then check help second!
Mike May: 
Mike May: I do the same when using LaTex
Mike May: or coding html
John Boncek: Mea culpa, mea culpa.
11:30 AM
Parviz Khalili: It would be nice to ask students to solve several equations with the 
same left hand side simultaneously.
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Harry Mills: thx
John Boncek: Thank you.
Hugh Sanders: Thanks
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Michael Siddoway: Thanks
Dennis Keeler has left this chat.
Derrick Head has left this chat.
Steve Prothero: So long
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Russell Blyth: Welcome