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COPY[x,y]

copies the contents of the vector x to the vector y.

Details and Options
Details and Options Details and Options
Examples  
Basic Examples  
Scope  
Properties & Relations  
Possible Issues  
Related Guides
Cite this Page
LinearAlgebra`BLAS`
LinearAlgebra`BLAS`

COPY

COPY[x,y]

copies the contents of the vector x to the vector y.

Details and Options

  • To use COPY, you first need to load the BLAS Package using Needs["LinearAlgebra`BLAS`"].
  • The following arguments must be given:
  • xinput expressionvector
    yinput/output symbolvector; the symbol value is modified in place
  • COPY[x,y] is equivalent to y=x.

Examples

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Basic Examples  (1)

Load the BLAS package:

Assign a vector to y:

Scope  (4)

A real vector :

A complex vector:

An arbitrary-precision vector:

A symbolic vector:

Properties & Relations  (1)

COPY[x,w] is equivalent to w=x:

Possible Issues  (2)

If the second argument is not a symbol, an error message is issued:

If the output symbol has been initialized to a vector, the input and output must have the same length:

To avoid this error, clear the existing output symbol.

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

Text

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

CMS

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

APA

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

BibTeX

@misc{reference.wolfram_2025_copy, author="Wolfram Research", title="{COPY}", year="2017", howpublished="\url{https://reference.wolfram.com/language/LowLevelLinearAlgebra/ref/COPY.html}", note=[Accessed: 16-August-2025]}

BibLaTeX

@online{reference.wolfram_2025_copy, organization={Wolfram Research}, title={COPY}, year={2017}, url={https://reference.wolfram.com/language/LowLevelLinearAlgebra/ref/COPY.html}, note=[Accessed: 16-August-2025]}