Infinity

Infinity or $\infty$ is a mathematical concept that describes something that has no bounds. For example, $\pi$ and $\tau$ have a infinite number of digits because they never end. The first use of infinity was during Ancient Greek by Anaximander who referred to it as "apeiron". The symbol, $\infty$ was first used by English mathematician John Wallis in 1655.

Also see: Infinite

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