LinearAlgebra`BLAS`
LinearAlgebra`BLAS`

# SWAP

SWAP[x,y]

swaps contents of the vectors x and y.

# Details and Options

• To use SWAP, you first need to load the BLAS Package using Needs["LinearAlgebra`BLAS`"].
• The following arguments must be given:
•  x input/output symbol vector; the symbol value is modified in place y input/output symbol vector; the symbol value is modified in place
• SWAP[x,y] is equivalent to {x,y}={y,x}.
• The vector arguments must be of the same length.

# Examples

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## Basic Examples(1)

Swap two vectors :

## Scope(4)

Real vectors:

Complex vectors:

Arbitrary-precision vectors:

Symbolic vectors:

## Generalizations & Extensions(2)

Swap the first two rows of a matrix in place:

Swap the second and third columns of a matrix in place:

## Properties & Relations(1)

SWAP[x,y] is equivalent to {x,y}={y,x}:

## Possible Issues(3)

The arguments must be symbols:

The arguments must be initialized to vectors:

The arguments must be of equal length:

Wolfram Research (2017), SWAP, Wolfram Language function, https://reference.wolfram.com/language/LowLevelLinearAlgebra/ref/SWAP.html.

#### Text

Wolfram Research (2017), SWAP, Wolfram Language function, https://reference.wolfram.com/language/LowLevelLinearAlgebra/ref/SWAP.html.

#### CMS

Wolfram Language. 2017. "SWAP." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/LowLevelLinearAlgebra/ref/SWAP.html.

#### APA

Wolfram Language. (2017). SWAP. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/LowLevelLinearAlgebra/ref/SWAP.html

#### BibTeX

@misc{reference.wolfram_2022_swap, author="Wolfram Research", title="{SWAP}", year="2017", howpublished="\url{https://reference.wolfram.com/language/LowLevelLinearAlgebra/ref/SWAP.html}", note=[Accessed: 10-June-2023 ]}

#### BibLaTeX

@online{reference.wolfram_2022_swap, organization={Wolfram Research}, title={SWAP}, year={2017}, url={https://reference.wolfram.com/language/LowLevelLinearAlgebra/ref/SWAP.html}, note=[Accessed: 10-June-2023 ]}