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The arithmetic-geometric mean and fast computation of elementary functions. (English) Zbl 0557.65009
Computational methods based on the arithmetic-geometric mean are discussed and used for constructing devices for rapidly computing elementary functions. An algorithm for \(\pi\) is given that exponentially converges: 20 iterations will provide over two million digits. All the examples rely on material from the theory of elliptic functions, and which essentially goes back to Gauss. The paper is an interesting synthesis of classical mathematics with contemporary computational concerns. The treatment is entirely self-contained and uses a minimum of elliptic function theory.
Reviewer: N.M.Temme

MSC:
65D20 Computation of special functions and constants, construction of tables
01A50 History of mathematics in the 18th century
65-03 History of numerical analysis
33-03 History of special functions
33E05 Elliptic functions and integrals
26A09 Elementary functions
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