Négyzetgyöknek

Négyzetgyöknek refers to the Hungarian term for a square root. In mathematics, the square root of a non-negative number x is a number y such that y squared equals x. This is denoted as √x. For example, the square root of 9 is 3, because 3 * 3 = 9. Similarly, the square root of 16 is 4, as 4 * 4 = 16.

Every positive number has two square roots: a positive one and a negative one. For instance, both 3 and -3, when squared, result in 9. However, the symbol √ typically denotes the principal, or non-negative, square root. The square root of zero is zero.

The concept of square roots is fundamental in algebra and geometry. It is used in calculating distances, solving quadratic equations, and in various areas of science and engineering. For irrational numbers like the square root of 2, a decimal approximation is often used. The inverse operation of squaring a number is taking its square root.