Is infinity a number? A question that left everybody disoriented. In a very simplest way, we can say that infinity is itself not a number because it does not belong to Real Numbers, it is just used to calculate values of an unknown variable or express the limit of such thing which is just going on without any limitation or the amount which has no ending point.
Infinity is denoted by the ∞ which generally means two lines that have no endpoints. It is also called Lemniscate. It is an ancient word that means “without end”.
Let’s take a quick look at infinity numbers. A German mathematician George Cantor introduced the concept of infinite numbers along with its two kinds i.e. ordinal infinite number and cardinal infinite numbers. The ordinal infinite number belongs to the ordering of an infinite set(Omega Ω is one of the examples of Ordinal infinite numbers) while cardinal infinite number expresses the size of the infinite set(Aleph-null № said to be the example of cardinal infinite numbers).
Infinity is neither even nor odd but it can be positive and negative infinity. Positive infinite number is the number of Real number set which comes after the greatest number you say whereas Negative infinite number are the smallest number of a Real number set.
Infinity in religion:
Religiously infinity is used to define Eternity or Immortal. People wear infinity symbols to show their never-ending love for God.
Infinity in a relationship:
Infinity in a relationship has the same concept as above. People wear and gift infinity pedant to show their love and affection for each other has no limits.
Performing an arithmetic operation on infinity number:
Arithmetic operation (Addition, subtraction, multiplication, and division) can perform with those number which lies on a number line or belongs to Real numbers while infinity is not the member of a Real number set. So if we perform any operation on infinite numbers the result remains undefined it is like performing operations with imaginary numbers which always have different identities.
Infinite numbers in calculus:
If we talk about infinity in terms of Calculus it simply means that the value of any variable can be smallest or greatest (without any borderline).
Summary:
If we summarize the whole discussion “is infinity a number or not?” infinity is not a number it does not belongs to any set. It is just an expression to express the limit of any value, a thought which is used to define the love and affection of any endless feeling.