Kling & Freitag GmbH

I had no idea what was meant by the description for this file, nor for the help. What is a "pair" number? Does this perhaps refer to prime pairs? The help refers to an "impair" number. Do you need to input a pair of numbers? Sorry, but its quite confusing. I'd call the help a bit impaired.

Once you edit the file, you find out that all this does is to test if a number is even or odd, i.e., it is testing the parity of an integer. Its pretty trivial to do, but it is functionality that is already on the file exchange.

http://www.mathworks.com/matlabcentral/fileexchange/loadFile.do?objectId=2006&objectType=file

Or, if you wish, just use this one line anonymous function:

iseven = @(x) mod(x,2) == 0;