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Everything about Arbitrary-precision arithmetic

Calculations where numbers' precision is only limited by computer memory

In computer science, arbitrary-precision arithmetic, also called bignum arithmetic, multiple-precision arithmetic, or sometimes infinite-precision arithmetic, indicates that calculations are performed on numbers whose digits of precision are potentially limited only by the available memory of the host system. This contrasts with the faster fixed-precision arithmetic found in most arithmetic logic unit (ALU) hardware, which typically offers between 8 and 64 bits of precision. Wikipedia →

🧭 Start here: a 6-step reading path

  1. Read the overview: Arbitrary-precision arithmeticA 5-minute orientation
  2. Skim a recent paper: Software Support for Arbitrary Precision Arithmetic in Programming LanguagesInfluential work since 2022
  3. Pick up a classic book: Programming Massively Parallel ProcessorsThe most-reprinted book on the subject
  4. Read the landmark paper: Arb: Efficient Arbitrary-Precision Midpoint-Radius Interval ArithmeticCited 180 times
  5. Go sideways: Fixed-point arithmeticA closely related topic
  6. Go sideways: Integer overflowA closely related topic

📖 Definitions

Noun Any calculation that is performed on numbers whose digits of precision are limited only by the available memory of the host system.

🏆 Landmark papers (most cited)

🆕 Influential since 2022

📚 Books worth reading

Ranked by number of editions on Open Library, a rough measure of how lasting a book is.

🔗 Related topics