MATLAB Functions | Help Desk |

Length of vector

nThe statement`=`

`length(X)`

`length(X)`

is equivalent to `max(size(X))`

for nonempty arrays and `0`

for empty arrays.
```
n = length(X)
```

returns the size of the longest dimension of `X`

. If `X`

is a vector, this is the same as its length.
x = ones(1,8); n = length(x) n = 8 x = rand(2,10,3); n = length(x) n = 10

`ndims`

` `

Number of array dimensions
`size`

` `

Array dimensions