In mathematics, the sign function or signum function is an odd mathematical function that extracts the sign of a real number. In mathematics, the sign function or signum function (from signum, Latin for "sign") is an odd mathematical function that extracts the sign of a real number. Let's Learn What is Signum Function in the chapter of Relation and Function. f:Râ†’RThis is known as signum function. In mathematics, the sign function orsignum function (from signum, Latin for "sign") is an odd mathematical function that extracts the sign of a real number.

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