Last Updated：2025/12/05

Dictionary quizzes to help you remember vocabulary

(mathematics) An infinite product that approximates half of pi: 𝜋/2=∏ₙ₌₁ ᪲(4n²)/(4n²-1)=∏ₙ₌₁ ᪲((2n)/(2n-1)·(2n)/(2n+1))[6pt]= Big (2/1·2/3 Big )· Big (4/3·4/5 Big )· Big (6/5·6/7 Big )· Big (8/7·8/9 Big )·;⋯.

音声機能が動作しない場合はこちらをご確認ください

See correct answer

Wallis product

Edit Histories（0）

Source Word

Wallis product

Proper noun

(mathematics) An infinite product that approximates half of pi: 𝜋/2=∏ₙ₌₁ ᪲(4n²)/(4n²-1)=∏ₙ₌₁ ᪲((2n)/(2n-1)·(2n)/(2n+1))\[6pt]= Big (2/1·2/3 Big )· Big (4/3·4/5 Big )· Big (6/5·6/7 Big )· Big (8/7·8/9 Big )·;⋯\.

Japanese Meaning

数学において、Wallisが提案した無限積を利用してπ/2（円周率の半分）を近似する手法。