## SIZE Size of a Variable

Section: Inspection Functions

### Usage

Returns the size of a variable. There are two syntaxes for its use. The first syntax returns the size of the array as a vector of integers, one integer for each dimension

      [d1,d2,...,dn] = size(x)

The other format returns the size of `x` along a particular dimension:

      d = size(x,n)

where `n` is the dimension along which to return the size.

### Example

    --> a = randn(23,12,5);
    --> size(a)

    ans =

     23 12  5

Here is an example of the second form of `size`.

    --> size(a,2)

    ans =

     12