http://tech.groups.yahoo.com/group/GraphingCalcUsers/ User group for Pacific Tech's Graphing Calculator math education visualization software Mon, 02 Jun 2008 22:36:13 GMT David Craig http://tech.groups.yahoo.com/group/GraphingCalcUsers/message/1566 http://tech.groups.yahoo.com/group/GraphingCalcUsers/message/1566 ... Right. DEFINITELY needs to be fixed [:-)] All of my recent messages to the gc4 list are coming back with a "message delayed" error, noting "Connection Sun, 01 Jun 2008 03:18:03 GMT Craig David http://tech.groups.yahoo.com/group/GraphingCalcUsers/message/1565 http://tech.groups.yahoo.com/group/GraphingCalcUsers/message/1565 Ok, now that Summer's here I have a bit of time to play with GC4. In trying to work out the Riemann sum example I mentioned the other day, I wanted to see Tue, 13 May 2008 05:22:08 GMT Christopher O. Young http://tech.groups.yahoo.com/group/GraphingCalcUsers/message/1564 http://tech.groups.yahoo.com/group/GraphingCalcUsers/message/1564 Thanks again, you're right. I was using MathType to typeset this, and I'm not too familiar with it. Also, as you might guess, I was pretty tired. The correct Mon, 12 May 2008 23:02:46 GMT Christopher O. Young http://tech.groups.yahoo.com/group/GraphingCalcUsers/message/1563 http://tech.groups.yahoo.com/group/GraphingCalcUsers/message/1563 ...  Your absolutely right, thanks. The derivation should be  On May 12, 2008, at 5:34 PM, Chuck Iverson wrote: I think the A_xP in the third and fourth Wed, 07 May 2008 05:50:32 GMT Christopher O. Young http://tech.groups.yahoo.com/group/GraphingCalcUsers/message/1562 http://tech.groups.yahoo.com/group/GraphingCalcUsers/message/1562 Beautiful animations! The graphics add a lot. Thanks very much for sharing. Mon, 05 May 2008 19:51:14 GMT ygsloan http://tech.groups.yahoo.com/group/GraphingCalcUsers/message/1561 http://tech.groups.yahoo.com/group/GraphingCalcUsers/message/1561 I joined the GC group last year and now have a body of work created in it. You can see a sampling of animations at: Wed, 30 Apr 2008 01:21:00 GMT Charles Iverson http://tech.groups.yahoo.com/group/GraphingCalcUsers/message/1560 http://tech.groups.yahoo.com/group/GraphingCalcUsers/message/1560 Petri (sorry for the previous misspelling) is correct. In fact, I was able to go up to a 10x10 using the same technique and do a matrix multiplication. I'm Wed, 30 Apr 2008 01:19:43 GMT Charles Iverson http://tech.groups.yahoo.com/group/GraphingCalcUsers/message/1559 http://tech.groups.yahoo.com/group/GraphingCalcUsers/message/1559 Peter is correct. In fact, I was able to go up to a 10x10 using the same technique and do a matrix multiplication. I'm not sure what the upper limit is. Tue, 29 Apr 2008 19:12:30 GMT Petri Sirkkala http://tech.groups.yahoo.com/group/GraphingCalcUsers/message/1558 http://tech.groups.yahoo.com/group/GraphingCalcUsers/message/1558 Actually GC3.5 lets you make 4x4 matrices too. You just need to make a 3x3 matrice, select it and use Edit -> Copy as Text. Then paste into some text editor Fri, 25 Apr 2008 16:56:31 GMT Christopher O. Young http://tech.groups.yahoo.com/group/GraphingCalcUsers/message/1557 http://tech.groups.yahoo.com/group/GraphingCalcUsers/message/1557 Although you can't do 4-by-4 matrices in GC 3.5, unfortunately, you can always get the same effect via combinations of vector and matrices. Also, you can right Fri, 25 Apr 2008 08:30:19 GMT Jorge de Sousa Pires http://tech.groups.yahoo.com/group/GraphingCalcUsers/message/1556 http://tech.groups.yahoo.com/group/GraphingCalcUsers/message/1556 Hello Christopher and other Again I have been busy with so many things and away from Maths and especially GC. Although I renewed the lab (by remote control) Tue, 01 Apr 2008 11:38:36 GMT Christopher O. Young http://tech.groups.yahoo.com/group/GraphingCalcUsers/message/1555 http://tech.groups.yahoo.com/group/GraphingCalcUsers/message/1555 The green line is a plot of the curvature with arc length, showing that there's a steady increase. The red dots are equally spaced on the clothoid, showing Fri, 28 Mar 2008 15:28:35 GMT Kevin Farrell http://tech.groups.yahoo.com/group/GraphingCalcUsers/message/1554 http://tech.groups.yahoo.com/group/GraphingCalcUsers/message/1554 A web site is the way to go Fri, 28 Mar 2008 04:20:36 GMT Arnold F. McKinley http://tech.groups.yahoo.com/group/GraphingCalcUsers/message/1553 http://tech.groups.yahoo.com/group/GraphingCalcUsers/message/1553 You might want to consider a wiki. They are relatively easy to set up I understand and others can participate. Alternatively you could do a blog. Just Fri, 28 Mar 2008 03:46:14 GMT Christopher O. Young http://tech.groups.yahoo.com/group/GraphingCalcUsers/message/1552 http://tech.groups.yahoo.com/group/GraphingCalcUsers/message/1552 Appreciate the feedback and the encouragement. Any chance I could turn to you with the occasional website question. I've got Freeway as my website builder, and