MATH
'(<a href="http://www.j-archive.com/media/2005-11-18_DJ_13.jpg" target="_blank">Kelly of the Clue Crew points to some expressions on a monitor.</a>)  In a complex number of the form shown <a href="http://www.j-archive.com/media/2005-11-18_DJ_13a.jpg" target="_blank">here</a>, "i" is short for this type of unreal number, like the square root of negative one'
imaginary