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MathGroup Archive 2002

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Different Methods inside one package

  • To: mathgroup at smc.vnet.net
  • Subject: [mg33715] Different Methods inside one package
  • From: "J. Guillermo Sanchez" <guillerm at usal.es>
  • Date: Mon, 8 Apr 2002 03:04:58 -0400 (EDT)
  • Sender: owner-wri-mathgroup at wolfram.com

(* Dear friends, I wish build a package where the user, as one option,
can be choose one of three methods of evaluation, i.e: Automatic, LT or 
EV. Some thing like this silly example *)

BeginPackage["test`test`"]

methodTest::usage="methodTest. This is an example"

Options[methodTest]={Method\[Rule]Automatic};

Begin["`Private`"]

methodTest[matrixA_, incond_, opts___]:=
  If[Automatic == Method/.{opts}/.Options[methodTest],
    Module[{a, b, r},(a = matrixA; b = incond; r = a b)]]

methodTest[matrixA_, incond_, opts___]:=
  If[LT == Method/.{opts}/.Options[methodTest],
    Module[{a, b, r},(a = matrixA; b = incond; r = a /b)]]

methodTest[matrixA_, incond_, opts___]:=
  If[EV == Method/.{opts}/.Options[methodTest],
    Module[{a, b, r},(a = matrixA; b = incond; r = a + b)]]

End[]

Protect[methodTest];

EndPackage[]

list1 ={{a11, a12 },{a21,a22}}

methodTest[list1,list2]

methodTest[list1,list2, Method\[Rule]EV]

methodTest[list1,list2, Method\[Rule]LT]


(*How can I get that this example work?*)


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