ISSPACE ISSPACE Test for Space Characters in a String

Usage

The isspace functions returns a logical array that is 1 
for characters in the argument string that are spaces, and 
is a logical 0 for characters in the argument that are not
spaces.  The syntax for its use is

   x = isspace(s)

where s is a string.  A blank character is considered
a space, newline, tab, carriage return, formfeed, and vertical
tab.
