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|square root |
A number that, when squared, yields a given number. For example, since 5 × 5 = 25, the square root of 25 (written √25) is 5.
A number that, when multiplied by itself, will result in a given number. The square root of four is two; the square root of one hundred is ten.
Note: The square roots of many numbers, such as three, are irrational numbers.
in mathematics, a factor of a number that, when multiplied by itself, gives the original number. For example, both 3 and -3 are square roots of 9. As early as the 2nd millennium BC, the Babylonians possessed effective methods for approximating square roots. See root