It is somewhat related to the production of the book, but it is an issue
maybe deserves its own thread.
When running
vp:=draw(cos(5*t/8),t=0..16*%pi,coordinates==polar)
the output is the picture from chapter 1.4 of the book.
What bothers me, is the visible red dots. Maybe these points are needed
to actually draw the curve, but why must they be visible? And even in
red? In the Jenks&Sutor book the graphics is black and white, but I
cannot find visible dots.
I can remove the points via
points(vp,1,"off")
but I wonder why the drawing default is not "off".
Unfortunately, I also haven't yet found a way to change the commands in
the book such that I could simply rewrite the draw command to something like
draw(..., points=="off")
in order to achieve a better output for the picture in the book.
Yes, I can add points(vp,1,"off") silently during the automatic picture
generation, but that would be lying to the reader. The command in the
book would not agree with the shown picture. I rather argue that
points=="off" should be the default.
Opinions?
Ralf
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