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MathGroup Archive 1995

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RealDigits

  • To: mathgroup at christensen.cybernetics.net
  • Subject: [mg1741] RealDigits
  • From: insshc at gsusgi2.gsu.edu (Samuel H. Cox)
  • Date: Mon, 24 Jul 1995 00:43:24 -0400

The function RealDigits[x, b] returns a list of two items.  For example,

RealDigits[Pi //N]
{{3, 1, 4, 1, 5, 9, 2, 6, 5, 3, 5, 8, 9, 7, 9, 3}, 1}

What is the inverse of this function?  That is, given the base b, a list
{...} of base b digits, and an interger n, how do we elegantly obtain x for
which RealDigits[x, b] = {{...},n}?

==================================
Samuel H. Cox
insshc at gsusgi2.gsu.edu
Department of Risk Management and Insurance
Georgia State University
PO Box 4036
Atlanta, GA 30302-4036
404-651-4854 (o)
404-651-4219 (f)



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