# Get array dimensions and size of a dimension in Julia – size() Method

• Last Updated : 26 Mar, 2020

The `size()` is an inbuilt function in julia which is used to return a tuple containing the dimensions of the specified array. This returned tuple format is (a, b, c) where a is the rows, b is the columns and c is the height of the array.

Syntax:
size(A::AbstractArray)
or
size(A::AbstractArray, Dim)

Parameters:

• A: Specified array
• Dim: Specified dimension

Returns: It returns a tuple containing the dimensions of the specified array.

Example 1:

 `# Julia program to illustrate ``# the use of Array size() method`` ` `# Finding a tuple containing the dimension of``# the specified 1D array A.``A ``=` `[``5``, ``10``, ``15``, ``20``]``println(size(A))`` ` `# Finding a tuple containing the dimension of``# the specified 2D array B of size 2*2``B ``=` `[``5` `10``; ``15` `20``]``println(size(B))`` ` `# Finding a tuple containing the dimension of``# the specified 3D array C of size 2*2*2``C ``=` `cat([``1` `2``; ``3` `4``], [``5` `6``; ``7` `8``], [``9` `10``; ``11` `12``], dims``=``3``)``println(size(C))`

Output:

Example 2:

 `# Julia program to illustrate ``# the use of Array size() method``    ` `# Finding a tuple containing the dimension of``# the specified 1D array A.``A ``=` `[``1``, ``2``, ``3``];``println(size(A, ``3``))``    ` `# Finding a tuple containing the dimension of``# the specified 2D array B of size 3*2``B ``=` `[``2` `4``; ``6` `8``; ``10` `12``];``println(size(B, ``2``))``    ` `# Finding a tuple containing the dimension of``# the specified 3D array C of size 2*2*4``C ``=` `cat([``10` `15``; ``20` `25``], [``30` `35``; ``40` `45``],``        ``[``50` `55``; ``60` `65``], [``70` `75``; ``80` `85``], dims``=``3``);``println(size(C, ``2``))`

Output:

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