∞

Early forms (e.g. in Euler's texts) may approach a 'lazy S', ∾. It has also been attributed to John Wallis and conjectured to originate from its use as a Roman numeral, a way of writing ↀ, since 1,000 was hyperbolically used to represent very large numbers.^[1][2]

∞

2. (mathematics) Infinity.

   ∞ + ∞ = ∞

   ${\displaystyle \lim _{x\to 0^{+}}{\frac {1}{x}}=+\infty }$

In English, this symbol is called the "infinity symbol". It is also called a lemniscate and a "lazy eight".

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