# Real-number meaning

An example of a real number is 1/2, 0, 1, 2, 3, 4, 5, etc.

^{3}/

_{7}, and pi (π) are all real numbers.

Every integer is a real number, but not vice versa.

A **real number** can be regarded abstractly as an equivalence class of Cauchy sequences of real numbers.WP.

Even if you pass sqrt an integer, it returns a **real number**.