Section: String Functions
strfind function.  The first is for single strings
ndx = strfind(string, pattern)
the resulting array ndx contains the starting indices in string
for the pattern pattern.  The second form takes a cell array of 
strings
ndx = strfind(cells, pattern)
and applies the search operation to each string in the cell array.
strfind to a simple string
--> a = 'how now brown cow?' a = how now brown cow? --> b = strfind(a,'ow') b = 2 6 11 16
Here we search over multiple strings contained in a cell array.
--> a = {'how now brown cow','quick brown fox','coffee anyone?'}
a = 
 [how now brown cow] [quick brown fox] [coffee anyone?] 
--> b = strfind(a,'ow')
b = 
 [1 4 double array] [9] []