pi

円周率、パイ

円周の長さを直径で割った値で、約3.14となる数。

やさしい英語で： The number, about 3.14, found by dividing the distance around a circle by its width through the centre.

• Pi is approximately 3.14.
• Multiply the diameter by pi to find the distance around a circle.
• How many digits of pi can you remember?

よく使う表現： value of pi, digits of pi, times pi

パイ

小文字ではπ、大文字ではΠと書くギリシャ文字。

やさしい英語で： The Greek letter written as π in its small form and Π in its capital form.

• Pi is a Greek letter.
• Write a lowercase pi beside the diagram.
• The symbol on the sign is a capital pi.

よく使う表現： letter pi, capital pi, lowercase pi

特殊記号の

印刷で、通常のラテン文字や数字以外の記号や文字に関する。

やさしい英語で： Describing printing symbols or letters outside the usual set of Latin letters and numbers.

• The printer used a pi font for the symbols.
• Pi characters include special signs for technical texts.
• The typesetter selected pi symbols for the equation.

よく使う表現： pi characters, pi font, pi symbols