When I last asked (about seven years ago!) how to draw two curves (in 2D) on the one set of axes, Bill Page immediately and obligingly provided me with a little gem of a function that you can see at
https://lists.gnu.org/archive/html/axiom-mail/2008-05/msg00038.html Now I know that it's supposedly possible to colour one's curves: such documentation as I've been able to dig up makes reference to the "spadcolors palette": there's even a domain PAL (Palette), but I can't find how to actually specify a colour; whether RGB (and in which case as a list of three integers each between 0 and 255, or hexadecimal, or by name, or some other method). Or can this whole business now be done neatly with gnuDraw? I note that gnuDraw, while no doubt excellent, has no examples in its documentation, so I've no idea how to actually use it. Note: I've checked out color.spad, palette.spad, and view2D.spad, but without a couple of examples I'm somewhat at sea. cheers, Alasdair -- [image: http://www.facebook.com/alasdair.mcandrew] <http://www.facebook.com/alasdair.mcandrew> [image: https://plus.google.com/+AlasdairMcAndrew/posts] <https://plus.google.com/+AlasdairMcAndrew/posts> [image: https://www.linkedin.com/pub/alasdair-mcandrew/a/178/108] <https://www.linkedin.com/pub/alasdair-mcandrew/a/178/108> [image: https://twitter.com/amca01] <https://twitter.com/amca01> [image: http://numbersandshapes.net] <http://numbersandshapes.net>
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