THIS IS DOCUMENTATION FOR AN OBSOLETE PRODUCT.
SEE THE DOCUMENTATION CENTER FOR THE LATEST INFORMATION.

DOCUMENTATION CENTER SEARCH

Mathematica > Core Language > Package Development > Namespace Management > Begin >

BUILT-IN MATHEMATICA SYMBOL

Begin

resets the current context.

The interpretation of symbol names depends on context. Begin thus affects the parsing of input expressions.

Define a function

in the

Restore the context:

will generally be hidden in the restored context:

The definitions are all in

The function can be called using its fully qualified name:

Define a function

in the

Out[1]=

Restore the context:

Out[3]=

will generally be hidden in the restored context:

The definitions are all in

The function can be called using its fully qualified name:

Out[6]=

Make symbols used for package function definitions private, reducing the possibility for conflict:

Any use of the symbol

in the package context ensures that

is created in that context:

When the context given to Begin starts with

it extends from the current context:

Since the symbol

is in the package context, the function works after EndPackage:

You can see that the other variable uses the private context: