We are executive members who pays $100/year. We also get cash back for every purchase and we pretty much get the membership fee back every year. We are a family of four and we buy most of our home supplies from Costco plus other stuffs. We love Costco but you have to know what you are buying.
Undefined is a term used when a mathematical result has no meaning. More precisely, undefined values occur when an expression is evaluated for input values outside of its domain. ( 1 if no complex numbers) ( 2 if no complex numbers) ( units in radians, no complex infinity)
In ordinary mathematics, you may not divide by zero. It is considered undefined. Consider the two situations: For the inverse of multiplication 0/0 = a, a could be any number to satisfy a x 0 = 0. At the same time, division of any nonzero number, a /0 = b, there is no number a such that b x 0 = a.