# How to count the number of elements in a vector in Matlab and Octave

To count the number of elements of a vector in Matlab and Octave use the length function

**length(v)**

The v parameter is the name of the array variable (vector).

The function returns the number of elements in the vector.

**Note**. The length function calculates the length of a row vector or column vector.

**Example**

Define a vector

>> v=['a';'b';'c';'d';'e']

To find out the number of elements in the vector use the **length()** function

>> length(v)

ans = 5

The vector has 5 elements.

https://how.okpedia.org/en/matlab/how-to-count-the-number-of-elements-in-a-vector-in-matlab-and-octave

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