radical sign
Square root indicator
The radical sign is the mathematical symbol (√) used to indicate a root, most commonly a square root.
The number under the symbol is the radicand: √16 = 4.
For roots other than square roots, a small number called the index appears in the crook of the symbol: ∛8 = 2 indicates a cube root.
- symbolRepresentational mark or sign
- mathStudy of numbers
- algebraMath using symbols
- math classAcademic period for calculations
- equationMathematical equality assertion
radicand · index · simplify · irrational · surd · notation · extract · calculate · polynomial · expression · vinculum · coefficient · perfect square · rationalize · nested · real number · denominator · quadratic
mathematical operation notation
radical signexponent
Superscript showing power
superscript · caret · exponentiation · squaring · cubing
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