Re: [NTG-context] functions and paths in metapost

15 Oct 2013


      On 10/15/2013 6:59 PM, Jean Magnan de Bornier wrote:
...
Le 14 octobre à 22:56:59 Hans Hagen  écrit notamment:
| On 10/14/2013 2:38 PM, Jean Magnan de Bornier wrote:
| > Hello all,
| >
| > Is it possible to define a path in metapost-metafun using "function"? In
| > the metafun manual (chapter on Functions) the examples shown are all of
| > the type "draw function ...". I wonder if it is possible to define a path
| > with a function ("picture" after draw doesn't allow that afaik)?
...
| there are some helpers in the new graph module, but Alan has to give
| an example
...
| % least-squares "fit" to a polynomial
| %
| % example :
| %
| %   path p[] ;
| %   numeric a[] ; a0 := 1 ; a1 := .1 ; a2 := .01 ; a3 := .001 ; a4 :=
| 0.0001 ;
| %   p0 := makefunctionpath(0,5,10,polynomial_function(a,4,x)) ;
...
| (it fails here so I probably misunderstand it)
...
I could not find this module ? (I always update with --modules=all)
mp-grap.mpiv

but Alan has to show how to use that feature (outside graph)

Hans

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