A Construction That Produces Wallis-Type Formulas

• 作者: David L. Farnsworth Joshua M. Fitzhugh
• 来源期刊: 理论数学进展(英文)
• 学科: 数学
• 关键词: Wallis’s FORMULA Unit p-Circle INFINITE Product Π GAMMA Function
• 年，卷（期）: 2013,（6）
• 页码范围: 579-585
• 页数: 7页
• 分类号: O1

摘要

Generalizations of the geometric construction that repeatedly attaches rectangles to a square, originally given by Myerson, are presented. The initial square is replaced with a rectangle, and also the dimensionality of the construction is increased. By selecting values for the various parameters, such as the lengths of the sides of the original rectangle or rectangular box in dimensions more than two and their relationships to the size of the attached rectangles or rectangular boxes, some interesting formulas are found. Examples are Wallis-type infinite-product formulas for the areas of p-circles with p > 1.