
2:25 PM Mike May: hi Russell Blyth: I'm in Christian Hellings: MatchettB needs another invite... Mike May: yes, I have Steve Prothero: VNC doesn't seem to be available Mike May: vnc is up now Lynne Doty has joined this chat. Lynne Doty: thanks Steve Prothero: Good, got it now. Dennis Keeler: what software do you use to broadcast the QT stream? Parviz Khalili: Evrything looks fine. Mike May: Quicktime Broadcaster sends the video to our Apple Xserve which then sebds it out using Quicktime Streaming Server Dennis Keeler: just wondering if my students would like virtual office hours. THey don't like to hike to the math building. Dennis Keeler: ah, not freeware. 2:30 PM Mike May: the server is not free Leah Wrenn Berman has joined this chat. Marius Buliga has joined this chat. Mike May: VNC server is free Regina Souza: still no sound Lynne Doty: no sound here either Christian Hellings: Is there a free-drawing white board facility just within AIM? I thought Yahoo Messenger had that. Mike May: anyone else on sound? Joyce Quella: You might be able to do it with TabletPCs Suzanne Riehl: I can hear you fine Hugh Sanders: I have sound. John Boncek: believe it or not, I have sound! Lynne Doty: okay, I restart Dennis Keeler: thanks. I'll have to play with VNC server. Daniel Shown has joined this chat. Steve Prothero: My sound is fine, but in the past I've had to recycle to get it back after it's gone away. Lynne Doty: I'm good on sound now. Tepper Gill has joined this chat. 2:35 PM Tepper Gill: thanks Mike May: video address is as expected pm1 Regina Souza: got sound now David Thomas: Are the three fills sent in the afternoon e-mail zipped? Michael Siddoway has joined this chat. Mike May: They shouldn't be - but that seems to be a puzzle. Go to the web site to get them if there's an issue. 2:40 PM John Boncek: All these features are nice....but I'm getting the feeling that the "new Maple" is getting to be unwieldy. Mike May: http://euler.slu.edu/PREP05/program.html Frank Rooney has joined this chat. Leah Wrenn Berman: Do you knwo if there's a way to force the table entries to *not* be in math mode? 2:45 PM Leah Wrenn Berman: We tried selecting and making it text but that didn't seem to work Mike May: Frank - are in the chat? Mike May: are you in? Harry Mills: Mike, Leah: I think you can move back 'n' forth simply by clicking on the Text/Math buttons in the top left. Lynne Doty: Leah, I figured it out-I think. Make it text before you type the number. Harry Mills: You click on math, and it evaluates upon "Enter"ing. 2:50 PM Harry Mills: Yes. Click the Text or Math buttons before typing and Maple will respect your choice of mode. Leah Wrenn Berman: too bad you don't get to change your mind after you've typed Harry Mills: That's when in document mode. Nice. This was just what Regina wanted. Mike May: video off Mike May: will be pm2 Mike May: back Mike May: all OK? Regina Souza: Can one insert something in document mode within a worksheet? Regina Souza: dont answer now I still don't have sound Regina Souza: ok Mike May: try it ... yes, you should be able to ... mike is trying now 2:55 PM Regina Souza: thanks - Time for me to do some hw! 3:00 PM Leah Wrenn Berman: If you have already typed a bunch of stuff, how can you insert sections that section up your already-typed text (without cutting and pasting)? Parviz Khalili: How do we get math symbols typed into our text? Harry Mills: Using the palette works. I don't like the mouse-dependent ergonomic, e.g., in TeX, \alpha does it. Parviz Khalili: Thanks that is nice John Boncek: I was having trouble typing || x ||^2 (norm of a vector squared) when I was playing with this earlier. 3:05 PM Harry Mills: I doubt it'll get to TeX capabilities unless people want to compile. I don't think such a feature would be cost-effective. Christian Hellings: I become hugely dependent on word completion. Christian Hellings: Ctrl-SPACE does it (on a PC keyboard anyway) 3:10 PM Leah Wrenn Berman: Can you talk about inserting sections into already-written text? Leah Wrenn Berman: lovely---thanks! Mike May: video will go down 3:15 PM Russell Blyth: video up Russell Blyth: pm3 Christian Hellings: Can you invite Dorothy Zeiser to the chat? Dorothy Zeiser has joined this chat. 3:20 PM Derrick Head: What's the purpose of interface(showassumed=0): Derrick Head: That's fine Thanks 3:25 PM Mike May: I checked, interfacec(showassumed=0) hides tildes that Maple will put on variables with assumptions. John Boncek: That's good to know. Those tildes are annoying 3:35 PM Harry Mills: I believe some of these approximations were used before the function space theory was developed to justify their use. Weren't Fourier series an instance of this *memory failing* Mike May: HM, You are correct. The theory was developed to unite several different processes. Mike May: HM, The theory also explains why several techniques emerged. They had nice properties, like not needing to start over with better approximations. Russell Blyth: pm 4 is up Mike May: rtsp://165.134.240.35/LA050629pm4.sdp 3:40 PM Leah Wrenn Berman: if you like...MmaTranslator[Mma][Chop] - replace approximate real numbers close to zero with the integer 0 3:45 PM Regina Souza: do you have a worksheet for exponential of matrices? I suppose Maple is able to compute it directly too... Regina Souza: good Leah Wrenn Berman: the obvious code works fine Leah Wrenn Berman: A^(1000) Regina Souza: i meant using diagonalization - as he used it for powers... Leah Wrenn Berman: oh, sorry 3:50 PM Regina Souza: that's really handy to write tests and quizzes, I suppose Michael Siddoway: Can you substitute the matrix into its characteristic polynomial? 3:55 PM Harry Mills: Hmmmm. You SHOULD be able to. Not sure if Maple expects it to be atomic or not. Michael Siddoway: Is there a way to take products of matrices with 1's and a's and have the entries appear as nice polynomials in a? Lynne Doty: Question: I know you mentioned this earlier, but what is the significance of the black bracket on left of block of text, What does it designate? Harry Mills: WARNING: Two kinds of "arrow": plots package version and plottools package version. Regina Souza: I'm still struggling with the basics. I sent you a small question by email 4:00 PM Steve Prothero: I have Maple 10 for this workshop, but the school has 9.5. Is there going to be much trouble running the worksheets you've supplied on 9.5? Harry Mills: I responded, Regina. plottools package version requires 5 arguments. You sent it 4. Harry Mills: Trying to mollify us, now, after that crack about people running on too little sleep? heh. Regina Souza: and 6 or 8 that know the answer too (which makes it nice, one doesn't have to struggle alone) Michael Siddoway: Will they run on 9.5? John Boncek: i've noted : maple 10 loads the worksheets you did in older versions very slowly (the conversion routine is very slow) Regina Souza: please get closer to the microphone... Harry Mills: yes, Jack. And forget about keeping any equation editor embeddings you may've used in v9 or v9.5. John Boncek: even worse -- i have maple 8! Harry Mills: I'd like to work more on this right now, but I have a work party of volunteers coming to my house in the next half-hour. Frank Rooney has left this chat. John Boncek: I've lost audio again....network congestion on our campus. David Thomas has left this chat. Harry Mills: I will work on this more this evening. I have something roughed- out that ain't pretty. I'll mail it to you tomorrow, Mike. Mike May: JB - Maple 8 will be fine Harry Mills: Jack: v8 will handle the embeddings. it's the later versions that don't. Steve Prothero: so long until tomorrow Suzanne Riehl has left this chat. David Huckaby has left this chat. Leah Wrenn Berman has left this chat. Regina Souza: ok - bye Harry Mills: With the palettes and such, you're better off w/o the embeddings, which you have to manually re-size. Harry Mills: *Bye* Steve Prothero has left this chat. Dorothy Zeiser: thanks Dennis Keeler: bye, thanks. Parviz Khalili: bye Derrick Head has left this chat. Harry Mills has left this chat. Christian Hellings has left this chat. John Boncek: I'll send you something very late tonight. (I teach until 10:30!) Lynne Doty has left this chat. Dorothy Zeiser has left this chat. John Boncek: good night Parviz Khalili has left this chat. John Boncek has left this chat. 4:05 PM Michael Siddoway: Thanks for a great day Michael Siddoway has left this chat. Tepper Gill: take care Mike May: You're welcome Tepper Gill has left this chat. Marius Buliga: thank you, bye. Joyce Quella has left this chat. Dennis Keeler has left this chat. Marius Buliga has left this chat. Todd Ashby: Thanks! Enjoyed it.Back to Home Page
This PREP workshop is made possible by the NSF grant DUE: 0341481