Symbols and notation
Square-root symbol
The radical sign requests a root; without a written index it means the principal square root, and with an index it specifies another root degree.
Common notation √x; ⁿ√x
In one sentence
What does Square-root symbol mean?
The radical sign requests a root; without a written index it means the principal square root, and with an index it specifies another root degree.
How it is written
√x; ⁿ√x
A compact example
√49=7 and ³√27=3.
Other names and search terms
√, radical sign, root symbol, square root sign.
Clear answers
Questions about Square-root symbol
What does Square-root symbol mean in mathematics?
The radical sign requests a root; without a written index it means the principal square root, and with an index it specifies another root degree.
How is Square-root symbol written?
A common notation is √x; ⁿ√x.
What is an example of Square-root symbol?
√49=7 and ³√27=3.