square root wikipedia - EAS
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In mathematics, a square root of a number x is a number y such that y = x; in other words, a number y whose square (the result of multiplying the number by itself, or y ⋅ y) is x. For example, 4 and −4 are square roots of 16, because 4 = (−4) = 16. Every nonnegative real number x has a unique nonnegative square … See more
The Yale Babylonian Collection YBC 7289 clay tablet was created between 1800 BC and 1600 BC, showing and respectively as 1;24,51,10 and 0;42,25,35 base 60 numbers on a square crossed by two diagonals. (1;24,51,10) base … See more
Square roots of positive numbers are not in general rational numbers, and so cannot be written as a terminating or recurring decimal expression. Therefore in general any attempt to compute a square root expressed in decimal form can only yield an approximation, … See more
Each element of an integral domain has no more than 2 square roots. The difference of two squares identity u − v = (u − v)(u + v) is proved using the commutativity of multiplication. If u and v are square roots of the same element, then u − v = 0. Because there are no See more
If A is a positive-definite matrix or operator, then there exists precisely one positive definite matrix or operator B with B = A; we then define A = B. In general matrices may have multiple … See more
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Square Root - Maths Wikipedia
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