Exclamation mark

 Lynn Atchison Beech
Exclamation mark

The exclamation mark or exclamation point is a punctuation mark usually used after an interjection or exclamation to indicate strong feelings or high volume (shouting), and often marks the end of a sentence. Example: “Watch out!”

In mathematics, the factorial of a positive integer n, denoted by n!, is the product of all positive integers less than or equal to n.

The character is encoded in Unicode as U+0021 ! exclamation mark (HTML: !).

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