1.
square root
A number that, when multiplied by itself, gives the original number. For example, the square root of 9 is 3.
9の平方根は3だ。
The square root of 9 is 3.
中学校の数学で平方根を習う。
You learn about square roots in middle school math.
平方根の計算は電卓を使えば簡単だが、手計算で求める方法も知っておくと役に立つ。
Calculating square roots is easy with a calculator, but knowing how to do it by hand is also useful.
A compound of 平方 (square, second power) and 根 (root). This is standard mathematical terminology taught in Japanese middle school (中学3年). The symbol √ is called 根号 or ルート in Japanese.
COMMON COLLOCATIONS:
- 平方根を求める: to find the square root
- 正の平方根: positive square root
- 平方根の計算: square root calculation
- ルート (平方根の記号): root symbol (√)
SIMILAR WORDS:
- 平方: square (of a number) — the inverse operation of square root
- 立方根: cube root — a number that when cubed gives the original
- ルート: root — the loanword commonly used in spoken Japanese for √