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Re: Drawing a vector list

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From	Christopher Arthur <aarthur@tx.rr.com>
Newsgroups	comp.soft-sys.math.mathematica
Subject	Re: Drawing a vector list
Date	Thu, 28 Apr 2011 10:34:26 +0000 (UTC)
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Hello Hauke Reddmann,

The easiest way to do this elegantly is with Apply[] or Map[] which
takes a list and makes each element the domain of a function.  The
result is also a list.  For example,

f[vect_]:={Polygon[...make a triangle...]}
Apply[f[#]&,L]

Hauke Reddmann a =E9crit :
> A n00b question - I have a 3D vector list L={{A1,A2},{B1,B2},{C1,C2}...
> where for example A1={1,2,3},A2={4,5,6} and so on. I want to draw
> the vectors A1->A2 etc. LINE has no arrowhead option, ARROW only eats 2D vectors
> and VECTORPLOT3D has yet another unfitting syntax. I could do a hackjob and
> first draw LINE[L] and then make a loop adding little arrowheads at all #2
> (and I would have to compute their directions too!),
> but what is the most elegant way to program this without any DO loops?
>
>

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Re: Drawing a vector list Christopher Arthur <aarthur@tx.rr.com> - 2011-04-28 10:34 +0000

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