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based on an earlier version of the Wolfram Language.
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DeclarePackage

DeclarePackage
declares that Needs should automatically be executed if a symbol with any of the specified names is ever used.
  • You can use DeclarePackage to tell Mathematica automatically to load a particular package when any of the symbols defined in it are used.
Use of the symbol implies reading the corresponding package automatically:
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Use of the symbol implies reading the corresponding package automatically:
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The named context is prepended to the search path:
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