The Greek letter Pi (uppercase Π). Read as 'pai' in Japanese.
ギリシャ文字のΠはパイと読み、大文字の一つだ。
The Greek letter Π is read 'pai' and is an uppercase letter.
The mathematical constant pi (π), the ratio of a circle's circumference to its diameter (approx. 3.14159). Note that lowercase π usually denotes the constant.
円周率πは約3.14159で、円の計算によく使われる。
The constant π is approximately 3.14159 and is often used in circle calculations.
試験でπの値を使って面積を求める問題が出た。
There was an exam question that required using the value of π to calculate an area.
In mathematics, the uppercase Pi (Π) denotes a product notation, indicating the product of a sequence of terms.
数列a_iの積は大文字のΠを使って表すことが多い（例: Π_{i=1}^n a_i）。
The product of a sequence a_i is often written using the uppercase Π (e.g., Π_{i=1}^n a_i).
この証明ではΠ記号で表された項の性質を調べる必要がある。
In this proof, we need to examine the properties of the terms written with the Π symbol.