title: Cocoa Foundation Kit question - NSDecimalNumberBy...:withBehavior:
body: <p>I'm trying to take a numeric value in a string and raise it by a power of 10. stumbled upon     <em>– decimalNumberByMultiplyingByPowerOf10:withBehavior:</em> which looks promising but I can't for the life of me figure out how to configure/set the <em>withBehavior</em> argument. I think I need to set it to <em>NSRoundDown</em> so when raising to negative power it won't round 'up' some values below a certain number of decimal places...but how does one set/use this <em>NSDecimalNumberBehaviors</em> gizmo? Sure wish Apple provided some examples in their docs...</p>