Real number
From ScienceZero
A real number is a number that can be described by an infinite (or shorter) sequence of decimals. Denoted by the symbol <math>\mathbb{R}</math>.
Values belonging to the classification of real numbers
-7
9.27
<math>\sqrt{2} \approx 1.41421356...</math>
<math>\pi \approx 3.14159265...</math>
Values not belonging to the classification of real numbers
<math>\sqrt{-1}</math>
