へいほうこん
平方根
1. square rootMathematics
2. Square rootIn mathematics, a square root of a number a is a number y such that y = a, or, in other words, a number y whose square (the result of multiplying the number by itself, or y × y) is a. For example, 4 is a square root of 16 because 4 = 16. Every non-negative real number a has a unique non-negative square root, called the principal square root, which is denoted by, where √ is called radical sign. For example, the principal square root of 9 is 3, denoted, because {{{1}}} and 3 is non-negative.
Read “Square root” on English Wikipedia
Read “平方根” on Japanese Wikipedia
Read “Square root” on DBpedia
Read “Square root” on English Wikipedia
Read “平方根” on Japanese Wikipedia
Read “Square root” on DBpedia
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