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Mathematics of Computation

Published by the American Mathematical Society since 1960 (published as Mathematical Tables and other Aids to Computation 1943-1959), Mathematics of Computation is devoted to research articles of the highest quality in computational mathematics.

ISSN 1088-6842 (online) ISSN 0025-5718 (print)

The 2020 MCQ for Mathematics of Computation is 1.78.

What is MCQ? The Mathematical Citation Quotient (MCQ) measures journal impact by looking at citations over a five-year period. Subscribers to MathSciNet may click through for more detailed information.


$p$-adic computation of real quadratic class numbers
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by J. Buchmann, J. W. Sands and H. C. Williams PDF
Math. Comp. 54 (1990), 855-868 Request permission


Let $\mathcal {K}$ be any real quadratic field and let ${h_\mathcal {K}}$ be the class number of $\mathcal {K}$. A method utilizing the p-adic class number formula for $\mathcal {K}$ is described for evaluating ${h_\mathcal {K}}$. The technique was programmed for a micro VAX II computer and run on all fields $\mathcal {K}$ with radicand $< {10^6}$.
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Additional Information
  • © Copyright 1990 American Mathematical Society
  • Journal: Math. Comp. 54 (1990), 855-868
  • MSC: Primary 11Y40; Secondary 11R29
  • DOI:
  • MathSciNet review: 1010596