
AIM Chat with Bill AbramsBack to Home Page, Chirashree Bhattacharya , Anne Collins , Benjamin Collins , Tom Hoffman , Dennis Keeler, Edward Moy , Julianne Rainbolt , Jen Roche , Daniel Shown , Gordon Swain , Gordon Williams , Shaochen Yang , Daylene Zielinski . 2:19 PM Russell Blyth: Hi Julianne Rainbolt: good afternoon Gordon Swain: Hello Benjamin Collins: Hello, all. Chirashree Bhattacharya: hi Daniel Shown: hi Julianne Rainbolt: hello Russell Blyth: VNC is up Tom Hoffman: sorry I had to leave early before, students at my door Bill Abrams: The one serious disadvantage to an online course. Dennis Keeler: don't get to try new restaurants either. Benjamin Collins: This job would be a lot easier without those pesky students. Jen Roche: I have a question about files Tom Hoffman: or the classes Dennis Keeler: I'm OK with the 100 or so students I interact with each year. It's the other 16,000 who really annoy me. Russell Blyth: Yes, Jen Jen Roche: So you LogTo a file 2:25 PM Jen Roche: suppose you want to reopen and run it and add to it Russell Blyth: Uh huh Jen Roche: ? Jen Roche: commands? Jen Roche: Read("file") or Append("file"); Brian Walter has joined this chat. Tom Hoffman: I don't think you can start logging to an existing file, LogTo will over write the old file Julianne Rainbolt: yes I think it does overwrite Julianne Rainbolt: we are looking up append Dennis Keeler: yes, just tested it. It does overwrite. Tom Hoffman: Append doesn't work on files Jen Roche: AppendTo Jen Roche: ? Tom Hoffman: AppendTo doesn't work like LogTo Daniel Shown: video is up at rtsp://165.134.240.35/GAP060712pm1.sdp Tom Hoffman: You can add to the file but it wont do everything you type Russell Blyth: Exactly Russell Blyth: Video is up Russell Blyth: Anyone NOT Ok with video? Julianne Rainbolt: use the InputLogTo command if you want to read something in later (not the LogTo command) 2:30 PM Julianne Rainbolt: Russell is addressing this by talking Benjamin Collins: Are you going to show us about "Work spaces"? Russell Blyth: Edward, video OK? Julianne Rainbolt: we may a note to talk about work spaces at some point Tom Hoffman: WorkSpaces do have problems if you want to change versions of GAP, might be a problem if you are sharing work with students. Edward Moy: Everything is working fine. Dennis Keeler: thanks. It's athttp://euler.slu.edu/GrantWebPages/PREP06AlgebraGap/tex/Section02_06.tex 2:35 PM Gordon Williams: that's very cool 2:40 PM Benjamin Collins: Thank you. Bill Abrams: I have lost sound. Anyone else? 2:45 PM Benjamin Collins: Sound OK here. Julianne Rainbolt: we're OK on sound Tom Hoffman: ok here Shaochen Yang: fine here Gordon Swain: OK Dennis Keeler: it's cut out for a half second a few times Russell Blyth: x^(p-1)-1 2:50 PM Dennis Keeler: Could remind students of Fermat's Little Theorem. Gallian does FLT in the Lagrange Theorem chapter. 2:55 PM Benjamin Collins: That they are all plus/minus 1. Brian Walter: they're all 1 or -1 Benjamin Collins: I really wanted to have something stronger than that. Tom Hoffman: -2 in last factor Gordon Williams: 4th line in the middle Gordon Williams: there's another one Russell Blyth: video down - good time for Q's and comments 3:00 PM Russell Blyth: we're back Russell Blyth: ...pm2 Gordon Williams: link? Russell Blyth: Still Q time, though, as screen movie is saving Benjamin Collins: So what are the odds that a student would look at that mess and not even see the 2's as coefficients.? Gordon Williams: 98.3% Gordon Williams: Gordon Williams: but someone in a class would Bill Abrams: This is a chance for those detail oriented students who have real trouble with theory to shine. Julianne Rainbolt: we are back - any one with problems Russell Blyth: Any problems? Gordon Williams: link? Daniel Shown: rtsp://165.134.240.35/GAP060712pm2.sdp Gordon Williams: thanks Brian Walter: i'm reading in the help files about Terms, Coeffs, etc. that tell you things about polynomials, but GAP doesn't seem to recognize those functions. any ideas? 3:05 PM Gordon Williams: What IS a workspace? Tom Hoffman: Terms is part of a package, not GAP Gordon Williams has left this chat. Tom Hoffman: note that a workspace is not a text file. you can't go look at it like a log file 3:10 PM Gordon Williams has joined this chat. Gordon Williams: yeah Gordon Williams: I'm good Julianne Rainbolt: Gordon W any problems? Gordon Williams: no Julianne Rainbolt: ok Gordon Williams: didn't even notice I'd dropped chat until I got reinvited Gordon Williams: we're doing section 15? Julianne Rainbolt: starting section 13 Julianne Rainbolt: on vector spaces Gordon Williams: got it 3:20 PM Brian Walter: sounds like the cops are onto you two Gordon Williams: homeland security more likely, they are members of the al'gebra movement (you were all thinking it, someone had to say it) Gordon Swain: p*(p+1)+1 3:25 PM Julianne Rainbolt: yes which equals what russell has Gordon Swain: symmetry? (generic geometric answer) Julianne Rainbolt: video down 3:30 PM Daniel Shown: rtsp://165.134.240.35/GAP060712pm3.sdp Russell Blyth: Video up Jen Roche: just so you know, there's a nasty thunderstorm headed this way, so if I disappear, that's why Julianne Rainbolt: ok Russell Blyth: we are starting section 14 Julianne Rainbolt: Other questions? Julianne Rainbolt: Volunteers yet? Julianne Rainbolt: everyone OK? Russell Blyth: anyone NOT ok? 3:35 PM Benjamin Collins: It can be very confusing to us. Tom Hoffman: this should make it easy to see subfields Benjamin Collins: Clear as day. Benjamin Collins: Well, a kind of cloudy day. Bill Abrams: I think I have it. Any suggestions about how to explain it to the students. Julianne Rainbolt: Just need to be clear about where elements live 3:40 PM Gordon Williams: please feel free to do more examples on this one Bill Abrams: I think I want your students. Gordon Williams: k, thanks\ Gordon Williams: so explain please why Z(2) showed up in the elements of GF(2^2)^2> Gordon Williams: er, ? 3:45 PM Gordon Williams: same difference in terms of my confusion over notation Gordon Williams: yeah, but aren't the elements corresponding to Z(2^2) in Z(2^4) different that their natural description in Z(2^? Gordon Williams: I understand there is an isomorphism Gordon Williams: but the notation doen't respect that the groups are different Tom Hoffman: gap uses Conway polynomials to generate finite fields, so all subfields are naturally compatible Gordon Williams: description reflects order properties not context then? Julianne Rainbolt: yes 3:50 PM Gordon Williams: ok Tom Hoffman: why can't we look at the elements of F? 3:55 PM Tom Hoffman: I tried that. Daylene Zielinski has left this chat. Tom Hoffman: Could this be used on page 1 to avoid the messy notation? Daylene Zielinski has joined this chat. 4:00 PM Daylene Zielinski: Yeah! I'm back! Daylene Zielinski: I was lost in cyberspace. Julianne Rainbolt: Anything? Daylene Zielinski: I had QT up the whole time. I'm cool. Benjamin Collins: G'night. Daylene Zielinski has left this chat. Julianne Rainbolt: bye! Russell Blyth: qt down Benjamin Collins has left this chat. Julianne Rainbolt: video is off Gordon Williams has left this chat. Dennis Keeler has left this chat. Brian Walter has left this chat. Shaochen Yang has left this chat. Tom Hoffman has left this chat. Gordon Swain has left this chat. Edward Moy has left this chat. Russell Blyth: vnc down Chirashree Bhattacharya has left this chat. Bill Abrams has left this chat. Jen Roche has left this chat.
This PREP workshop is made possible by the NSF grant DUE: 0341481