Wallis product

Known as: Wallis's product, Proof of Wallis product, Wallis' product 
In mathematics, Wallis' product for π, written down in 1655 by John Wallis, states that
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2003-2014
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Papers overview

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2014
2014
The m-clover is the plane curve defined by the polar equation rm/2 = cos (m2 θ). In this article we extend a well-known… (More)
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2012
2012
1. Richard Courant and Fritz John, Introduction to Calculus and Analysis, Vol. I, Springer-Verlag, New York, 1989. 2. Persi… (More)
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2009
2009
By “straightforward” we mean that it can be presented in a standard one-variable calculus course. This is not the first time an… (More)
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2009
2009
A Steiner star for a set P of n points in R connects an arbitrary center point to all points of P , while a star connects a point… (More)
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2009
2009
This equation becomes Wallis’ product when p = 0 and Vieta’s formula as p → ∞. It is surprising that such a connection between… (More)
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Review
2008
Review
2008
There are many beautiful formulas for π (see for example [4]). The purpose of this note is to introduce an alternate derivation… (More)
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2007
2007
by repeated partial integration. The topic is usually reserved for more advanced calculus courses. The purpose of this note is to… (More)
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2005
2005
Die Brucellose des Wildes ist, sehr atlgemein betra&tet, zuf~illig und ursprtingli& dur& das Rind verursacht. Durch successive… (More)
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2003
2003
  • Lee F.L
  • 2003
Throughout the centuries, one of the most well-studied number is perhaps the number π. Its long history reflects the importance… (More)
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