Reference sqrt()

sqrt()

Calculates the square root of a number.

A number's square root can be multiplied by itself to produce the original number. For example, sqrt(9) returns 3 because 3 × 3 = 9. sqrt() always returns a positive value. sqrt() doesn't work with negative arguments such as sqrt(-9).

Examples

Syntax

sqrt(n)

Parameters

n

non-negative number to square root.

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