BeginPackage

BeginPackage["context`"]

makes context` and System` the only active contexts.

BeginPackage["context`",{"need1`","need2`",}]

calls Needs on the needi.

Details

Examples

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Basic Examples  (1)

Commands to define a simple package:

The context for symbol creation has been changed to square`:

The context path for symbol lookup includes square`:

Here are the commands defining the function in the package:

Restore the context, but leave square` on the context path for symbol lookup:

Since EndPackage leaves square`square on the context path, the function defined is visible:

Get the square of 12:

Scope  (1)

Use BeginPackage and EndPackage to start and end a package in a file:

The package can be loaded with Get:

Once loaded, the definitions work:

Wolfram Research (1988), BeginPackage, Wolfram Language function, https://reference.wolfram.com/language/ref/BeginPackage.html.

Text

Wolfram Research (1988), BeginPackage, Wolfram Language function, https://reference.wolfram.com/language/ref/BeginPackage.html.

BibTeX

@misc{reference.wolfram_2020_beginpackage, author="Wolfram Research", title="{BeginPackage}", year="1988", howpublished="\url{https://reference.wolfram.com/language/ref/BeginPackage.html}", note=[Accessed: 28-February-2021 ]}

BibLaTeX

@online{reference.wolfram_2020_beginpackage, organization={Wolfram Research}, title={BeginPackage}, year={1988}, url={https://reference.wolfram.com/language/ref/BeginPackage.html}, note=[Accessed: 28-February-2021 ]}

CMS

Wolfram Language. 1988. "BeginPackage." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/ref/BeginPackage.html.

APA

Wolfram Language. (1988). BeginPackage. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/BeginPackage.html