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Wallis's Constant

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Wallis's constant is the real solution (x^3-2x-5)_1=2.0945514815... (OEIS A007493) to the cubic equation

x^3-2x-5=0.

It was solved by Wallis to illustrate Newton's method for numerical equation solving.

See also

Cubic Equation, Newton's Method, Plastic Constant

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References

Gruenberger, F. "Computer Recreations: How to Handle Numbers with Thousands of Digits, and Why One Might Want To." Sci. Amer. 250, 19-26, Apr. 1984.Sloane, N. J. A. Sequence A007493/M0036 in "The On-Line Encyclopedia of Integer Sequences."Wells, D. The Penguin Dictionary of Curious and Interesting Numbers. Middlesex, England: Penguin Books, p. 45, 1986.

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Wallis's Constant

Cite this as:

Weisstein, Eric W. "Wallis's Constant." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/WallissConstant.html

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