Recent Examples of irrational number from the Web
An irrational number is one that cannot be expressed by a fraction of integers, or whole numbers.
The short way to say this is that pi is an irrational number, one that cannot be represented as a fraction and thus has an infinite and never-repeating decimal expansion.
This distinguishes it again from more familiar irrational numbers like the square root of two (whose second power is equal to two).
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Learn More about irrational number
Britannica.com: Encyclopedia article about irrational number
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