Noun irrational number has 1 sense

1. irrational number - a real number that cannot be expressed as a rational number
   --₁ is a kind of real number, real
   --₁ has particulars:

   transcendental number; algebraic number; pi, 3.14159265358979323846...; e, 2.718282...

Irrational Number

Definition: An irrational number is a real number that cannot be expressed as a simple fraction or a ratio of two integers.

Examples:

• The most famous example of an irrational number is π (pi).
• √2 (square root of 2) is another common irrational number.
• e (Euler's number) is also an irrational number.

Usage:

- In mathematics, irrational numbers are used extensively in geometry, trigonometry, and calculus.

- Irrational numbers play a significant role in proving the existence of numbers that cannot be expressed as fractions.

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