AIM Chat with Larry Granda , Mike May , Daniel Shown .
2:19 PM
Russell Blyth: Hi
Mike May: Hi
Daniel Shown: hello
Anna Davis has declined the invitation to this chat.
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Larry Granda: Gutten Tag
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Bill Marion: Hey, there.
Michael Saclolo: Good afternoon.
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2:25 PM
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Margaret Symington: Good afternoon.
Russell Blyth: We hope everyone had a good break
Russell Blyth: Margaret and Paul
Louise Paquette: good and a busy one
Russell Blyth: we have a new VNC address
Paul Coe: Which is?
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Mike May: artsciqt1.slu.edu:1 on a PC
Mike May: artsciqt1.slu.edu with Display set to 1 on a Mac
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Paul Coe: Got it up and running. Thank you.
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Mike May: vnc is as for this morning
Paul Coe: What about the quicktime video?
Mike May: OK, video is pm1
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2:30 PM
Larry Granda: Video is up
Mike May: rtsp://165.134.240.35/mvc060726pm1.sdp
Paul Coe: Thank you. I'm up.
Mike May: great
Mike May: Margaret, do you have vnc?
Russell Blyth: Questions?
Margaret Symington: yes, all is good
Mike May: OK
Patricia Giurgescu: excellent materials posted
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Bill Marion: That's for sure.
Jawahar Pathak: I have problem with VNC
Daniel Shown: i'll talk with you seperately
Jawahar Pathak: Please give me url for PREP preogrm site.
Mike May: ok
Mike May: http://euler.slu.edu/GrantWebPages/PREP06Calc3Maple/program.html
2:35 PM
Marina Dedlovskaya: my video is off
Mike May: rtsp://165.134.240.35/mvc060726pm1.sdp
Daniel Shown: marina, try restarting QT
Michael Saclolo: video ok
Mary Platt: yes
Jerome Heaven: ok here
Mary Marshall: video ok
Scott Greenleaf: Video is fine here.
Bill Marion: Yes
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Mike May has joined this chat.
Mike May: thx
Louise Paquette: anna needs to be invited
Mike May: I just did again
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2:40 PM
Mike May: James: video
Mike May: rtsp://165.134.240.35/mvc060726pm1.sdp
James McGee: i am up and running
Mike May: ok
Anna Davis went offline before accepting your invitation.
2:45 PM
Jerome Heaven: we normally don't spend too much time on this topic, but I might reconsider after seeing this
Mike May: The visualization makes it clear what's going on ...
Jerome Heaven: very much so!
Christian Hellings: Very neat!
Chris Oehrlein: I agree. Most students need to see the taylor stuff more than once in the calc sequence for it to make sense. It's so different and foreign to them.
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Scott Greenleaf: That's a great illustration.
Mike May: Jim, need urls?
Jim Rutledge: yes, please
Mike May: rtsp://165.134.240.35/mvc060726pm1.sdp
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Mike May: vnc: artsciqt1.slu.edu:1 on a PC
Anna Davis: thank you
2:50 PM
Mike May: finally!
Michael Saclolo: yes, general
Jerome Heaven: we do Taylor Series and Approximations at the start too
Michael Saclolo: did I hear that calc 3 is a 4 hour course? Are calc 1 and 2 also?
Michael Saclolo: for slu?
Jerome Heaven: all ours are 4
Michael Saclolo: ours are all 3 hour
2:55 PM
Bill Marion: Question: now that raised issue of complex plane, can you plot complex functions, do complx "differentiation", "integration", etc?
Chris Oehrlein: We are moving to the 3 four-hour course format starting this fall. It mainly helps prepare my engineers for their physics courses earlier.
Mike May: No. I simply point out that complex numbers have an impact, even if we are doing real valued questions.
Mike May: This does a bit of setting things up
Mike May: I find that my students have never seen cis(theta) which is useful for lots of identitites.
3:15 PM
Mike May: Questions?
Russell Blyth: video will do down,
Mike May: Video going down
Russell Blyth: back on pm2 soon
Mike May: A note on the last worksheet. Th contours plotting let me ask the same question.
Russell Blyth: video up
Larry Granda: back with pm2
Mike May: What is the one z value we are approaching, letting the students respond, there iis no one right answer.
Mike May: all ok?
Mike May: fun with complex numbers, e.g.,
Mike May: evalf(ln(-2));
3:20 PM
Bill Marion: lost voice; tried to restart--didn't work.
3:30 PM
Patricia Giurgescu: how do you plot the function in polar coordinates?
Jerome Heaven: polarplot, i believe
3:35 PM
Anna Davis: Why does it say that x^2y/(x^2+y^2) at (0,0)? Am I missing something?
Anna Davis: continuous
Russell Blyth: questions?
Anna Davis: I just don't see where the worksheet said to fill in the point at (0,0)
Mike May: it's in the defn of the function, I think
Anna Davis: Oh, ok
3:45 PM
Curtis Herink: There is something weird in my copy of the worksheet. The first formula for normalizing vector has 'Typesetting:-delayDotProduct(v1,v1)' under the square root.
Curtis Herink: - D not -D
Curtis Herink: Syure
Scott Greenleaf: Yes, I have that too.
Curtis Herink: pc
Margaret Symington: 2D Math seems to be the default. Can one change the default to 1D?
Mike May: Yes
3:50 PM
Jerome Heaven: tools -> options - interface
Mike May: Look in preferences, display. You can mak input display default to be Maple notation
Christian Hellings: Tools -> Options, then under the Display tab, change Input display
Margaret Symington: thanks
Joel Silverberg: My students find it helpful to think about concentric circles centered on the arrow tip of the red vector, and visualizing when the circles first touch the extension of the blue vector. That is the closest distance (they recognize)
Joel Silverberg: and is orthogonal as well.
Joel Silverberg: concentric spheres of course in 3D
3:55 PM
Russell Blyth: Any volunteers?
Anna Davis: Chris, Louise, will we be ready?
Margaret Symington: Any suggestions if our first attempts as coding are failing -- in particular a plot that is blank?
Mary Platt: Can you discuss "list" vs "vector"?
Louise Paquette: We should be. Chris is putting our parts together.
Anna Davis: should we go then?
Patricia Giurgescu: row vs. column vector
Mary Platt: Plots need a list?
Mary Platt: Please
4:00 PM
Scott Greenleaf: I think maybe it's converting a vector to one of the vertices of the polygon.
Patricia Giurgescu: for dot and cross product which is best row, or column?
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Anna Davis: Thank you
Jim Rutledge: thanks
Mike May: I tend to use  rather than [a,b,c].
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Michael Saclolo: thanks
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Patricia Giurgescu: thank you!
Sang Lee: Thank you and see you later.
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Mary Marshall: Thank you.
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Russell Blyth: anyone still need video?
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Russell Blyth: bye
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4:05 PM
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