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GraphingCalcUsers · User group for Pacific Tech's Graphing Calculator math education visualization software
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Messages 1452 - 1482 of 1579   Oldest  |  < Older  |  Newer >  |  Newest
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1452
Could anyone advise me on how I can operate in 3D mode? When I attempt to enter co-ordinates as shown in the help files...
Charles van Bassen
cnarles.vanb...
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Oct 2, 2007
2:28 am
1453
Could anyone advise me on how I can operate in 3D mode? When I attempt to enter co0ordinates as shown in the help files,"you enter this," all attempts are...
Charles van Bassen
cnarles.vanb...
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Oct 2, 2007
2:29 am
1454
... If you can attach a file or send it to me, it would a lot easier to zero in on the problem. Are you sure you have GC 3.5? To find out, select "About...
Christopher O. Young
c1572young
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Oct 2, 2007
6:19 am
1455
... Were you trying to graph this in 3D? The problem with that is that you have no y variables in the equations. If you put one in, even if multiplied by...
Christopher O. Young
c1572young
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Oct 2, 2007
6:54 am
1456
... You have to enter "=" and then another 3-vector (Math/3-Vector), and then fill in the fields of that 3-vector with the function you want to plot. For...
Christopher O. Young
c1572young
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Oct 3, 2007
10:25 am
1457
You can always draw the associated field lines for a vector function by just forming the related ordinary differential equation by taking the "Total...
Christopher O. Young
c1572young
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Oct 3, 2007
10:45 am
1458
Although you can't do field lines for 3D vector fields in GC 3.5, you can add a surface from which to draw the arrows. The surface could be movable, allowing...
Christopher O. Young
c1572young
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Oct 3, 2007
11:05 am
1459
Here's a vector field with the same animated y-term added to each component. You can drag the mouse in the graph to see the field line going through that...
Christopher O. Young
c1572young
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Oct 3, 2007
11:48 am
1460
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the GraphingCalcUsers group. File :...
GraphingCalcUsers@yah...
Send Email
Oct 3, 2007
12:23 pm
1461
The charges and radii of the spheres are adjustable via sliders. The "n" animation button controls the distance--Click the arrow to animate. The yellow arrows...
Christopher O. Young
c1572young
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Oct 3, 2007
12:50 pm
1462
Here's an inverse-square force field, such as you might see from an electrically charged sphere. I've adjusted the resolutions of the surface and of the vector...
Christopher O. Young
c1572young
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Oct 3, 2007
12:50 pm
1463
I'm trying to find a way to not have arrows plotted with the circles, so that on the whole the arrows will be longer so that we can see the vector summation at...
Christopher O. Young
c1572young
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Oct 3, 2007
1:05 pm
1464
Although the vectors are getting added correctly, the blue arrows as shown aren't the correct length. I'm still not sure how to fix this. I think the problem...
Christopher O. Young
c1572young
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Oct 3, 2007
2:14 pm
1465
At least in this simple case, the parallelogram addition of the vectors is represented correctly. I have to have both circles the same size, or it's off:...
Christopher O. Young
c1572young
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Oct 3, 2007
2:24 pm
1466
By using an "if" statement on of its arguments, we can make the vector function as a whole undefined inside of a certain distance of the . This ensures that GC...
Christopher O. Young
c1572young
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Oct 3, 2007
2:39 pm
1467
It looks like by adjusting the relative size of the "clipping circles", the vector parallelograms can be made to come out right. If I can figure out the...
Christopher O. Young
c1572young
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Oct 3, 2007
2:50 pm
1468
Hi List, Regarding the click and drag math program I mentioned last week I just wanted to let you know that I've put a couple videos on my website in a flash...
John Peberdy
johnpeberdy
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Oct 4, 2007
5:01 am
1469
I've posted two files (based on David Poole's Linear Algebra, 2nd ed, 0-534-99845-3) in the Linear Algebra folder illustrating a simple way to find...
chuck_iverson
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Oct 18, 2007
5:05 pm
1470 Christopher O. Young
c1572young
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Oct 19, 2007
6:58 am
1471
This message came through completely munged, and the group web site doesn't seem to store copies of the attachments. David Craig ...
David Craig
dcraigx
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Oct 21, 2007
3:22 am
1472
Hi, can an ignoramus join and ask some stupid questions? Don’t know much about arithmetic, and maths is something from another planet to me. My brain...
Dick Richardson
somerset_2
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Oct 27, 2007
12:33 pm
1473
... Dick, The tricky part here is the law of exponents for logarithms, which tells us that . This makes sense, since logarithms convert multiplication into...
Christopher O. Young
c1572young
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Oct 27, 2007
8:19 pm
1474
... The book "Where Mathematics Comes From" has a very interesting discussion of this in terms of how the exponential and logarithmic functions set up an...
Christopher O. Young
c1572young
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Oct 27, 2007
8:45 pm
1475
Hello Christopher, To me, not being a mathematician nor having the kind of inner wiring to be one, anything above, more complex than, basic arithmetic is an...
Dick Richardson
somerset_2
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Oct 27, 2007
11:15 pm
1476
Here's a graphical demonstration that the inverse of the z = exp(x+y) is z = ln(x+y). I put everthing in the gray box in order to show how the odd shapes of...
Christopher O. Young
c1572young
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Oct 28, 2007
5:31 am
1477
... I agree it would be helpful to have something on "radian" mode in the Help, but that's simply the default mode; every argument you give to a trig function...
Christopher O. Young
c1572young
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Oct 30, 2007
3:58 am
1479
Sorry, I accidentally uploaded a file made by the new GC4 under development. My mistake, it should have gone to the mailing list for GC4 development. There...
Christopher O. Young
c1572young
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Oct 31, 2007
7:56 am
1480
... I just wanted the increments on the x axis to read in degrees.Although GC doesn't have a one-step way of converting a graph to degree-marks and still be...
Christopher O. Young
c1572young
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Nov 1, 2007
8:19 am
1481
Here's a file that can be used as a template for any time you want the x-axis to be labeled in degrees. I had to use custom axes and labels, since GC's scales...
Christopher O. Young
c1572young
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Nov 1, 2007
9:20 am
1482
Below, I've spaced the dashes better, in synch with the trig function period. Trying to get some insight into why the minima and maxima of the slanted sine...
Christopher O. Young
c1572young
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Nov 1, 2007
11:10 am
Messages 1452 - 1482 of 1579   Oldest  |  < Older  |  Newer >  |  Newest
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