GraphingCalcUsers at Yahoo! Groups

Parametric curves, 3. Ellipse as scaled circle. Animation.

Chris Young — Sat, 21 Nov 2009 07:21:50 GMT

To finish off the discussion of how we can investigate parametric curves interactively with GC, we can check that an ellipse is simply a scaled circle by

Parametric curves, 3. Connecting corresponding parts of figures.

Chris Young — Sat, 21 Nov 2009 06:47:40 GMT

Below, we connect the corresponding dots on the circumscribing circle to those on the ellipse: By the way, GC has a really irritating bug with function

Parametric curves, 2. Using "t" parameter to draw different parts of

Chris Young — Sat, 21 Nov 2009 06:47:23 GMT

Here's part 2, dealing with applying the drawing parameter t to different parts of an expression to draw different elements of a figure. For the circle, if we

Parametric curves tutorial. Part 1.

Chris Young — Sat, 21 Nov 2009 06:47:10 GMT

The basic idea behind parametric curves is simply to use the reserved variable "t" along with vectors or complex numbers. Below, t multiplying the [2 1]

Re: trying to create a gradually drawn 3d curve

Chris Young — Tue, 10 Nov 2009 06:36:32 GMT

Here's a simple example where you can have both the regular curve via F(t) and the progressively drawn curve via F(nt), where n runs from 0 to 1.

Re: trying to create a gradually drawn 3d curve

David Craig — Mon, 09 Nov 2009 22:49:03 GMT

... Use n*t as the parameter. GC will plot the t from 0 to 1 (or whatever range you set for t); as n grows the plotted parameter range goes from 0 to n*t.

trying to create a gradually drawn 3d curve

helper — Mon, 09 Nov 2009 22:37:55 GMT

I have a simple problem which still escapes me. I am trying to draw a 3d space curve, using n, instead of t, which slowly grows, like a trajectory path, as n

MONKEY FIST

arthur.lawrence@... — Sat, 03 Oct 2009 02:13:11 GMT

FOOLING AROUND WITH TORI AND CAME UP WITH THIS! ARTPLOT

FORGOT MONKEY FIST

arthur.lawrence@... — Sat, 03 Oct 2009 02:12:57 GMT

FORGOT TO ADD ATTACHMENT (DUH) ARTPLOT

CHECKERBOARD INVERSION

ChristopherYoung56@... — Wed, 16 Sep 2009 21:25:51 GMT

Hi Chris, The conformal stuff I'm getting is great and inspiring. I'll be glad when the new release comes out. The attach is slow to go but the color

Re: Tiling the plane with circles

Chris Young — Sat, 12 Sep 2009 19:00:14 GMT

On Sep 11, 2009, at 3:21 PM, ... In GC 3.5, you can use parameter lists to plot each circle. The circle at the pole gets "blown up"

Good speed-up method!

Chris Young — Wed, 26 Aug 2009 05:30:51 GMT

Thanks for the tip! Using the built-in grid and axis seems to speed things up a lot. Wish there were an option to make it darker. Ch Thanks for the tip!

Re: Brainstorm. Speeding up complex plots of grids.

Chris Young — Tue, 25 Aug 2009 04:07:35 GMT

On Aug 24, 2009, at 9:56 PM, ... Here's something pretty fast from the Help menu under Examples/5. Complex variables/• Conformal

Artplot's latest complex curves

Chris Young — Mon, 24 Aug 2009 05:14:35 GMT

Just want to share some more beautiful complex curves from "Artplot".

Filtering out the "jump line" in complex plot of log

Chris Young — Sat, 22 Aug 2009 07:47:35 GMT

By adding the "if " condition, we get rid of what was really not a curve, but just a "jump line" across a discontinuity, I believe. By adding the