The cube root of an arbitrary value x is a value that, when multiplied by itself three times, equals x. Stated mathematically, .
While a square root of a negative number is undefined for real numbers, the cube root of a negative number is possible. This is because a negative number multiplied by itself three times is still negative.
While some scientific calculators have a cube root button, most do not. To calculate the cube root of 3, type the following characters into your calculator, followed by the enter key: 3^(1/3). This works because the cube root of x is also x raised to the 1/3 power:
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