Japan stirlingses Reservation Number 📞8
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11: Guide to Searching the DLMF
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term:
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phrase:
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proximity operator:
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a textual word, a number, or a math symbol.
any double-quoted sequence of textual words and numbers.
adj, prec/n, and near/n, where n is any positive natural number.
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stands for any number of alphanumeric characters |
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(the more conventional * is reserved for the multiplication operator) |
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12: 26.6 Other Lattice Path Numbers
§26.6 Other Lattice Path Numbers
… ►Delannoy Number
… ►Motzkin Number
… ►Narayana Number
… ►§26.6(iv) Identities
…13: 26.5 Lattice Paths: Catalan Numbers
§26.5 Lattice Paths: Catalan Numbers
►§26.5(i) Definitions
► is the Catalan number. … ►§26.5(ii) Generating Function
… ►§26.5(iii) Recurrence Relations
…14: 27.2 Functions
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§27.2(i) Definitions
… ►where are the distinct prime factors of , each exponent is positive, and is the number of distinct primes dividing . … ►(See Gauss (1863, Band II, pp. 437–477) and Legendre (1808, p. 394).) … ► … ►§27.2(ii) Tables
…15: 26.14 Permutations: Order Notation
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►As an example, is an element of The inversion number is the number of pairs of elements for which the larger element precedes the smaller:
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►For example, .
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►The Eulerian number, denoted , is the number of permutations in with exactly descents.
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§26.14(iii) Identities
…16: 26.7 Set Partitions: Bell Numbers
§26.7 Set Partitions: Bell Numbers
►§26.7(i) Definitions
… ►§26.7(ii) Generating Function
… ►§26.7(iii) Recurrence Relation
… ►§26.7(iv) Asymptotic Approximation
…17: 27.13 Functions
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§27.13(ii) Goldbach Conjecture
… ►§27.13(iii) Waring’s Problem
… ►Hence because both divisors, and , are congruent to . … ►By similar methods Jacobi proved that if is odd, whereas, if is even, times the sum of the odd divisors of . …Explicit formulas for have been obtained by similar methods for , and , but they are more complicated. …18: 1.2 Elementary Algebra
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►The arithmetic mean of
numbers
is
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►The geometric mean
and harmonic mean
of positive numbers
are given by
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►If is a nonzero real number, then the weighted mean
of nonnegative numbers
, and positive numbers
with
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►The dot product notation is reserved for the physical three-dimensional vectors of (1.6.2).
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►The diagonal elements are not necessarily distinct, and the number of identical (degenerate) diagonal elements is the multiplicity of that specific eigenvalue.
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