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11: 4.43 Cubic Equations
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, , and , with , when .
, , and , with , when , , and .
, , and , with , when .
12: 12.7 Relations to Other Functions
13: 4.17 Special Values and Limits
14: 14.4 Graphics
15: 19.38 Approximations
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►Minimax polynomial approximations (§3.11(i)) for and in terms of with can be found in Abramowitz and Stegun (1964, §17.3) with maximum absolute errors ranging from 4×10⁻⁵ to 2×10⁻⁸.
Approximations of the same type for and for are given in Cody (1965a) with maximum absolute errors ranging from 4×10⁻⁵ to 4×10⁻¹⁸.
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16: 29.7 Asymptotic Expansions
17: 3.4 Differentiation
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►For additional formulas involving values of and on square, triangular, and cubic grids, see Collatz (1960, Table VI, pp. 542–546).
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18: 26.2 Basic Definitions
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►If, for example, a permutation of the integers 1 through 6 is denoted by , then the cycles are , , and .
…The function also interchanges 3 and 6, and sends 4 to itself.
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►As an example, , , is a partition of .
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►As an example, is a partition of 13.
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►The example has six parts, three of which equal 1.
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19: 27.15 Chinese Remainder Theorem
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►Choose four relatively prime moduli , and of five digits each, for example , , , and .
…By the Chinese remainder theorem each integer in the data can be uniquely represented by its residues (mod ), (mod ), (mod ), and (mod ), respectively.
Because each residue has no more than five digits, the arithmetic can be performed efficiently on these residues with respect to each of the moduli, yielding answers , , , and , where each has no more than five digits.
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