https://www.mathsisfun.com/numbers/real-numbers.html

Mathematicians also play with some special numbers that that aren't Real Numbers. The Real Number Line. The Real Number Line is like a geometric line.

https://www.mathsisfun.com/definitions/real-number.html

The type of number we normally use, such as 1, 15.82, −0.1, 3/4, etc. Positive or negative, large or small, whole numbers or decimal numbers are all Real ...

https://www.mathsisfun.com/sets/number-types.html

(Q is from the Italian "Quoziente" meaning Quotient, the result of dividing one number by another.) Irrational Numbers. Any real number that is not a Rational ...

https://www.mathsisfun.com/numbers/evolution-of-numbers.html

Real Numbers: {x : x is a rational or an irrational number}. In fact a Real Number can be thought of as any point anywhere on the number line:.

https://www.mathsisfun.com/whole-numbers.html

Whole Numbers and Integers. Whole Numbers. Whole Numbers are simply the numbers 0, 1, 2, 3, 4, 5, ... (and so on). number line whole. No Fractions!

https://www.mathsisfun.com/sets/real-number-properties.html

Example: Multiplying by zero. When we multiply a real number by zero we get ...

https://www.mathsisfun.com/irrational-numbers.html

An Irrational Number is a real number that cannot be written as a simple fraction. ... A Rational Number can be written as a Ratio of two integers (ie a simple ...

https://www.math.hmc.edu/funfacts/ffiles/20013.3.shtml

If you are familiar with complex numbers, the "imaginary" number i has the ... It is a rather curious fact that i raised to the i-th power is actually a real number!

https://medium.com/starts-with-a-bang/top-5-facts-about-imaginary-math-737e4b53b57d

Feb 26, 2014 ... Now that you know what they are, here are my top 5 fun facts about imaginary numbers! 1.) The square root of i has both real and imaginary ...

https://www.mathopenref.com/rational-number.html

A rational number is one that can be represented as the ratio of two whole numbers.