SWAP[x,y]
swaps contents of the vectors x and y.
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 placey 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
open all close allBasic Examples (1)
Load the BLAS package:
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:
Related Guides
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_2025_swap, author="Wolfram Research", title="{SWAP}", year="2017", howpublished="\url{https://reference.wolfram.com/language/LowLevelLinearAlgebra/ref/SWAP.html}", note=[Accessed: 17-November-2025]}
BibLaTeX
@online{reference.wolfram_2025_swap, organization={Wolfram Research}, title={SWAP}, year={2017}, url={https://reference.wolfram.com/language/LowLevelLinearAlgebra/ref/SWAP.html}, note=[Accessed: 17-November-2025]}