# Documentation

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## Add Cells to Cell Array

This example shows how to add cells to a cell array.

Create a 1-by-3 cell array.

`C = {1, 2, 3}`
```C = 1x3 cell array {[1]} {[2]} {[3]} ```

Assign data to a cell outside the current dimensions. MATLAB® expands the cell array to a rectangle that includes the specified subscripts. Any intervening cells contain empty arrays.

`C{4,4} = 44`
```C = 4x4 cell array {[ 1]} {[ 2]} {[ 3]} {0x0 double} {0x0 double} {0x0 double} {0x0 double} {0x0 double} {0x0 double} {0x0 double} {0x0 double} {0x0 double} {0x0 double} {0x0 double} {0x0 double} {[ 44]} ```

Add cells without specifying a value by assigning an empty array as the contents of a cell. `C` is now a 5-by-5 cell array.

`C{5,5} = []`
```C = 5x5 cell array Columns 1 through 4 {[ 1]} {[ 2]} {[ 3]} {0x0 double} {0x0 double} {0x0 double} {0x0 double} {0x0 double} {0x0 double} {0x0 double} {0x0 double} {0x0 double} {0x0 double} {0x0 double} {0x0 double} {[ 44]} {0x0 double} {0x0 double} {0x0 double} {0x0 double} Column 5 {0x0 double} {0x0 double} {0x0 double} {0x0 double} {0x0 double} ```