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cube root
[cube root|cube root] [cube root] is a power function with a fractional exponent of 1/3, expressed as f(x) = x^(1/3).
Definition
cube root [cube root] is a power function with a fractional exponent of 1/3, expressed as f(x) = x^(1/3). It is considered easy to find, often used before squaring in calculations.
Mechanism
cube root y varies inversely as [cube root] of x when x = 64, y = 5. y varies directly as [cube root] of x when x = 27, y = 15.
Effects
cube root [cube root] functions are power functions with fractional powers since they can be written as f(x) = x^1/3. This is because 2^3 = 8, so 2 is the cube root of 8.