√ In Mathematics, root symbol is commonly used when it comes to calculations. You might be wondering what it actually means (we’ll discuss it in-depth later on in this article). For now, it’s enough to say that what no. is obtained after radical no is two times the original no.

e.g. **√4 = 2**

It clearly shows that the 2 is the square root of 4 which means when 2 is multiplied itself by then, the original no: radicand is obtained.

As far as the origin is concerned, it’s quite controversial. However, most of the mathematicians believe that the Arab mathematicians first used this symbol in their calculations. One of them is Abu al-Hasan-ibn-e-Ali. Sources state that it was first taken from the Arabic word “ج”

Leonhard Euler considered it was taken from the letter “r” referring to “radix.”

It is first used in 1525 in print.