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)
The term well-defined is also used to indicate whether a logical statement is unambiguous. A function that is not well-defined is not the same as a function that is undefined.For example, if f (x) = 1/ x, then f (0) is undefined, but this has nothing to do with the question of whether f (x) = 1/ x is well-defined. It is; 0 is simply not in the domain of the function.hereas the definition in step 1. is formulated with the freedom of any definition and is certainly effective (without the need to classify it as âwell-definedâ), the assertion in step 2. has to be proved: If and only if, we get a function, and the of definition is well-defined.