3D?

What is 3D? I see it in a lot of these posts, but I do not see it in any or the examples.

In reply to my question about color in quiver, it was suggested that I try:

quiver(x,y,u,v,color =3D (v>0)*1.) to draw arrows with positive v to the color corresponding to index 1 in the color map, and the arrows with negative v to the color corresponding to 0.

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Ms. Carol A. Leger
SRI International Phone: (650) 859-4114
333 Ravenswood Avenue G-273
Menlo Park, CA 94025 e-mail: leger@...392...

Carol Leger wrote:

What is 3D? I see it in a lot of these posts, but I do not see it in
any or the examples.

In reply to my question about color in quiver, it was suggested that I try:

quiver(x,y,u,v,color =3D (v>0)*1.) to draw arrows with positive v to the
color corresponding to index 1 in the color map, and the arrows with
negative v to the color corresponding to 0.

Some mail programs encode the text in a funny way that uses = as an escape
character. The encoded representation of a real = character is =3D.

http://en.wikipedia.org/wiki/Quoted-printable

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--
Robert Kern
robert.kern@...287...

"I have come to believe that the whole world is an enigma, a harmless enigma
that is made terrible by our own mad attempt to interpret it as though it had
an underlying truth."
  -- Umberto Eco