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]