## UPPER Convert strings to upper case

Section: String Functions

### Usage

The `upper` function converts a string to upper case with the syntax

       y = upper(x)

where `x` is a string, in which case all of the lower case characters in `x` (defined as the range `'a'-'z'`) are converted to upper case. Alternately, you can call `upper` with a cell array of strings

       y = upper(c)

in which case each string in the cell array is converted to upper case.

### Example

A simple example:

    --> upper('this Is Strange CAPitalizaTion')

    ans =

     THIS IS STRANGE CAPITALIZATION

and a more complex example with a cell array of strings

    --> upper({'This','Is','Strange','CAPitalizaTion'})

    ans =

     ['THIS']   ['IS']   ['STRANGE']   ['CAPITALIZATION']