Q: What is a symbol that is used to indicate the square root?

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The symbol used to indicate a nonnegative square root.

The symbol √ for the square root was first used in print in 1525 inChristoph Rudolff's Coss, which was also the first to use the then-new signs '+' and '-'

No, there is no such requirement or convention.

Leonhard Euler, an 18th Century mathematician, invented it. But the square root was used before him by the Greeks.

The 'radical': √

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It is the RADICAL SIGN , its definition is - the symbol used to indicate a nonnegitive square root.

The symbol used to indicate a nonnegative square root.

Radical Sign

it looks like a check mark. it is called the radical. it looks like this --> √

The square root symbol (âˆš) was first used in 1525, by Christoph Rudolff, and is called a radical.

That symbol is called the radical.

The symbol √ for the square root was first used in print in 1525 inChristoph Rudolff's Coss, which was also the first to use the then-new signs '+' and '-'

The is only one unambiguous way and that is to use the modulus, thus: |√x| Some people do use +√x but, of course, this could be mean add the square root -whatever its sign.

No, there is no such requirement or convention.

Yes, but it's not real. The symbol i is used to designate the square root of negative one.

The radical symbol ( âˆš ) followed by a line above what's in the radical, designates positive square root.

The symbol you should be looking for is " √ ".