# In Julia, an array can transform to a matrix, how can I do it?

**URL:** <https://discourse.julialang.org/t/in-julia-an-array-can-transform-to-a-matrix-how-can-i-do-it/61637>\
**Category:** General Usage\
**Created:** [May 22, 2021, 2:08pm UTC](https://discourse.julialang.org/t/in-julia-an-array-can-transform-to-a-matrix-how-can-i-do-it/61637 "2021-05-22T14:08:43Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![BYS](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/bys/32/25384_2.png) [@BYS](https://discourse.julialang.org/u/BYS)\
**Post date:** [May 22, 2021, 2:08pm UTC](https://discourse.julialang.org/t/in-julia-an-array-can-transform-to-a-matrix-how-can-i-do-it/61637/1 "2021-05-22T14:08:43Z")

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Hi, all  
In Julia, I find,if I use  
`A=zeros(20,1);`  
A can be a array, instead of a vector,but I want it to be a vector and I also want to use function “zeros”, How can I do it?  
Thanks a lot!

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**Author:** ![ericphanson](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/ericphanson/32/215186_2.png) [@ericphanson](https://discourse.julialang.org/u/ericphanson)\
**Post date:** [May 22, 2021, 2:11pm UTC](https://discourse.julialang.org/t/in-julia-an-array-can-transform-to-a-matrix-how-can-i-do-it/61637/2 "2021-05-22T14:11:48Z")

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The number of arguments you pass is the number of dimensions you get. So here you got a two dimensional object since you passed 20 and 1. To get a vector (a one-dimensional object), just pass one argument:

```julia
zeros(20)

```

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**Author:** ![BYS](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/bys/32/25384_2.png) [@BYS](https://discourse.julialang.org/u/BYS)\
**Post date:** [May 22, 2021, 2:30pm UTC](https://discourse.julialang.org/t/in-julia-an-array-can-transform-to-a-matrix-how-can-i-do-it/61637/3 "2021-05-22T14:30:35Z")

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Thank you very much. It seems not to be the same as MATLAB.

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**Author:** ![lmiq](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/lmiq/32/18314_2.png) [@lmiq](https://discourse.julialang.org/u/lmiq)\
**Post date:** [May 22, 2021, 2:46pm UTC](https://discourse.julialang.org/t/in-julia-an-array-can-transform-to-a-matrix-how-can-i-do-it/61637/4 "2021-05-22T14:46:40Z")

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> [@BYS](#):
>
> It seems not to be the same as MATLAB.

Maybe a quick look at this will help:

[https://docs.julialang.org/en/v1/manual/noteworthy-differences/](https://docs.julialang.org/en/v1/manual/noteworthy-differences/)

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**Author:** ![BYS](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/bys/32/25384_2.png) [@BYS](https://discourse.julialang.org/u/BYS)\
**Post date:** [May 22, 2021, 2:55pm UTC](https://discourse.julialang.org/t/in-julia-an-array-can-transform-to-a-matrix-how-can-i-do-it/61637/5 "2021-05-22T14:55:54Z")

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Thank you!