Built-in Mathematica Symbol

Information

Information[symbol]
prints information about a symbol.

MORE INFORMATION

Information[symbol] prints the same information as the input escape ??symbol would give.

Information has attribute HoldAll.

EXAMPLES

CLOSE ALL

Basic Examples (2)

Get usage and attribute information:

Short input form:

Get usage information only:

Short input form:

Get usage and attribute information:

In[1]:=

Short input form:

In[2]:=

Get usage information only:

In[1]:=

Short input form:

In[2]:=

Scope (2)

For built-in symbols, Information gives attributes, defaults, and options, as well as usage messages:

For user-defined symbols, Information gives definitions as well:

Generalizations & Extensions (1)

For string patterns, Information gives a clickable list of matching symbols:

Options (2)

The default is LongForm->True:

The short form gives only usage messages:

Properties & Relations (5)

If no usage message exists, Information gives the symbol name only, including the context:

Add a usage message:

Information prints the values rendered by Definition, as well as usage messages:

?? is the same as Information:

? is the same as Information with LongForm->False:

For a read-protected symbol, no definitions are printed:

Possible Issues (1)

Information prints output as a side effect; it does not return a value:

SEE ALSO

Definition Names ValueQ DownValues UpValues Message

TUTORIALS

Getting Help with a Text-Based Interface

Making Definitions

Making Definitions for Functions

Making Definitions for Indexed Objects

Associating Definitions with Different Symbols

The Ordering of Definitions

MORE ABOUT

Assignments

Mathematica Session Information

Mathematica Sessions

Symbol Handling

Mathematica Syntax

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