円周率は3.14159という無限小数です。
Pi is an infinite decimal that begins 3.14159.
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Example sentences
3.14 is often used as an approximation of pi.
計算の結果、円周率の近似値として3.14を用いた。
As a result of the calculation, 3.14 was used as an approximate value for pi.
Usage Notes
The mathematical constant pi (π), the ratio of a circle's circumference to its diameter. It's an irrational number, approximately 3.14159.
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