Built-in Mathematica Symbol

FullForm

FullForm[expr]
prints as the full form of expr, with no special syntax.

MORE INFORMATION

FullForm acts as a "wrapper", which affects display, but not evaluation. »

FullForm always effectively uses "PrintableASCII" as the setting for $CharacterEncoding.

The option NumberMarks can be used to specify whether ` marks should be used to indicate type, precision or accuracy of approximate numbers. »

EXAMPLES

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Basic Examples (2)

FullForm of a typeset expression:

FullForm of a graphic:

FullForm of a typeset expression:

In[1]:=

Out[1]//FullForm=

FullForm of a graphic:

In[1]:=

Out[1]//FullForm=

Scope (8)

Integer, Rational, Real and Complex numbers:

Arbitrary-precision Real and Complex numbers:

Special constants:

Characters and strings of characters:

Control characters for strings:

Different inputs interpreted as Power expressions:

Special typeset expressions:

Different list structures:

Input without special interpretation:

With special characters in the same positions there may be special interpretations:

In the case of superscripts, most things get interpreted as Power:

Some objects use a special output representation:

Some objects use an elided output representation:

The elided parts are visible in the underlying FullForm:

Options (2)

Inexact numbers format without number marks by default:

The same numbers without number marks:

A mixed symbolic and numeric expression:

Omit all number marks:

Applications (4)

The FullForm will show the precedence of operators:

Grouping with parentheses affects the precedence:

See the underlying interpretation for a TraditionalForm output:

Perform replacements:

Replace lists with a new wrapper newhead:

Multiplications have the head Times:

Find all multiplications in expr:

See the underlying expressions:

Properties & Relations (3)

FullForm affects display but not evaluation:

Apply FullForm to the evaluated integral:

FullForm has linear formatting without special syntax:

InputForm formats as linear input:

TreeForm graphically displays an expression's tree structure:

Possible Issues (1)

Pattern matching is based on the FullForm:

The previous fraction is represented as a single Power expression:

Perform the desired replacement: