# Reverse

Reverse[expr]

reverses the order of the elements in expr.

Reverse[expr,n]

reverses elements at level n in expr.

Reverse[expr,{n1,n2,}]

reverses elements at levels n1, n2, in expr.

# Details

• Reverse works on SparseArray objects, reversing the elements in the corresponding ordinary array.
• Reverse[expr] is equivalent to Reverse[expr,1].
• For a matrix m, Reverse[m] reverses the order of the rows, and Reverse[m,2] reverses the order of the columns.

# Examples

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## Basic Examples(3)

Reverse an Association:

Reverse an Association on the first and second levels:

## Generalizations & Extensions(1)

Reverse works with heads other than List:

## Applications(3)

Reverse sublists:

Reverse operands:

Turn an array plot upside down:

## Properties & Relations(1)

Reverse is its own inverse:

Wolfram Research (1988), Reverse, Wolfram Language function, https://reference.wolfram.com/language/ref/Reverse.html (updated 2007).

#### Text

Wolfram Research (1988), Reverse, Wolfram Language function, https://reference.wolfram.com/language/ref/Reverse.html (updated 2007).

#### CMS

Wolfram Language. 1988. "Reverse." Wolfram Language & System Documentation Center. Wolfram Research. Last Modified 2007. https://reference.wolfram.com/language/ref/Reverse.html.

#### APA

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

#### BibTeX

@misc{reference.wolfram_2024_reverse, author="Wolfram Research", title="{Reverse}", year="2007", howpublished="\url{https://reference.wolfram.com/language/ref/Reverse.html}", note=[Accessed: 17-June-2024 ]}

#### BibLaTeX

@online{reference.wolfram_2024_reverse, organization={Wolfram Research}, title={Reverse}, year={2007}, url={https://reference.wolfram.com/language/ref/Reverse.html}, note=[Accessed: 17-June-2024 ]}