Numerische Mathematik

, Volume 18, Issue 3, pp 224–242 | Cite as

A floating-point technique for extending the available precision

  • T. J. Dekker


A technique is described for expressing multilength floating-point arithmetic in terms of singlelength floating point arithmetic, i.e. the arithmetic for an available (say: single or double precision) floating-point number system. The basic algorithms are exact addition and multiplication of two singlelength floating-point numbers, delivering the result as a doublelength floating-point number. A straight-forward application of the technique yields a set of algorithms for doublelength arithmetic which are given as ALGOL 60 procedures.


Mathematical Method Basic Algorithm Number System Double Precision Floating Point 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer-Verlag 1971

Authors and Affiliations

  • T. J. Dekker
    • 1
  1. 1.Mathematical CentreAmsterdamNetherlands

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