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Topic: Visual Presentation of Real Number System
Replies: 61   Last Post: Dec 11, 2013 11:12 PM

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 Gary Tupper Posts: 544 Registered: 12/3/04
Fwd: Re: Visual Presentation of Real Number System
Posted: Nov 25, 2013 4:47 PM

We tend to think primarily about visual algebraic models in terms of
marks on a sheet of paper.
Which makes difficult any attempt to draw the model of a Real line as
distinct from a Rational or Irrational line.

However, if we consider a computer display, then we can introduce the
possibility of animation. On a computer screen, the model of the
Real number line would appear much as a drawn model on paper. In order
to display a model of the Rational number line, the line might blink
(red, say),
and an Irrational line might blink blue. If that capability were
implemented, then a line that blinked alternately red & blue would be an
model of the Real line.

Now - what about a line minus a point? On paper usually shown by a small
circle on the line. However a computer screen model might consist of a
So - what would we make of a line that that blinked red & blue, with a
single pixel blinking green?

Gary Tupper

========================================================================

From a rather naive perspective, it seems that arrows visually
differentiate between segments, rays and lines.
I'm more interested in how one might draw a rational (or irrational)
number 'line'. (as distinct from the Real counterparts.)

Gary Tupper
Terrace BC

Date Subject Author
11/21/13 Jerry P. Becker
11/21/13 Dave L. Renfro
11/21/13 Gary Tupper
11/25/13 Gary Tupper
11/25/13 Robert Hansen
11/25/13 Gary Tupper
11/25/13 Robert Hansen
11/25/13 Robert Hansen
11/25/13 Joe Niederberger
11/21/13 Robert Hansen
11/24/13 Joe Niederberger
11/25/13 Robert Hansen
11/25/13 Joe Niederberger
11/25/13 Joe Niederberger
11/25/13 Robert Hansen
11/25/13 Joe Niederberger
11/25/13 Robert Hansen
11/25/13 Robert Hansen
11/25/13 Robert Hansen
11/26/13 Joe Niederberger
11/26/13 Robert Hansen
11/26/13 Robert Hansen
11/26/13 Robert Hansen
11/26/13 Robert Hansen
11/26/13 Joe Niederberger
11/26/13 Louis Talman
11/26/13 Joe Niederberger
11/26/13 Robert Hansen
11/26/13 Joe Niederberger
11/26/13 Robert Hansen
11/26/13 Joe Niederberger
11/26/13 Gary Tupper
11/26/13 Robert Hansen
11/26/13 Joe Niederberger
11/26/13 Robert Hansen
11/26/13 Joe Niederberger
11/26/13 Joe Niederberger
11/26/13 Joe Niederberger
11/27/13 Joe Niederberger
11/27/13 Robert Hansen
11/27/13 Joe Niederberger
11/27/13 Robert Hansen
11/27/13 Joe Niederberger
11/27/13 Robert Hansen
11/27/13 Joe Niederberger
11/28/13 Robert Hansen
11/27/13 Joe Niederberger
11/28/13 Joe Niederberger
11/28/13 GS Chandy
11/28/13 Joe Niederberger
11/29/13 Robert Hansen
11/28/13 Joe Niederberger
11/29/13 GS Chandy
11/29/13 Joe Niederberger
11/29/13 Joe Niederberger
11/29/13 Robert Hansen
11/29/13 Joe Niederberger
12/4/13 GS Chandy
12/4/13 Joe Niederberger
12/11/13 Joe Niederberger
12/11/13 Robert Hansen
12/11/13 GS Chandy