The way I always looked at it, is if you are within the same array and doing a mathematical operation, if it's a boolean return it will be coerced, thus no need for a double unary minus, or multiplied by 1, or added zero, whatever.

Quote Originally Posted by xld
Nothing in this case. See http://www.xldynamic.com/source/xld.SUMPRODUCT.html
Your website is re-directing me to some weird site...