as eigenfunctions of a q-difference operator
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41: 17.2 Calculus
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βΊ
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βΊNote that (17.2.6_1) is just (27.14.14) with and .
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βΊWhen , where is a nonnegative integer, (17.2.37) reduces to the -binomial series
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βΊIf is continuous on , then
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βΊThese identities are the first in a large collection of similar results.
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42: 30.4 Functions of the First Kind
43: 18.1 Notation
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βΊ
-Differences
βΊForward differences: … βΊBackward differences: … βΊCentral differences in imaginary direction: … βΊIn Koekoek et al. (2010) denotes the operator .44: Philip J. Davis
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βΊHe returned to Harvard after the war and completed a Ph.
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βΊAt that time John Todd was Chief of the Numerical Analysis Section of the Applied Mathematics Division and head of the Computation Laboratory that co-developed, with the NBS Electronic Computer Laboratory, the Standards Eastern Automatic Computer (SEAC), the first fully operational stored-program electronic digital computer in the United States.
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βΊ” Davis believed it was the first chapter written, and he laid out a schema that could serve as a model for the other chapters.
Davis also co-authored a second Chapter, “Numerical Interpolation, Differentiation, and Integration” with Ivan Polonsky.
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βΊMoreover, a cutting plane feature allows users to track curves of intersection produced as a moving plane cuts through the function surface.
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45: 1.4 Calculus of One Variable
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βΊA function is square-integrable if
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βΊIf , then is of bounded
variation on .
In this case, and are nondecreasing bounded functions and .
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βΊLastly, whether or not the real numbers and satisfy , and whether or not they are finite, we define
by (1.4.34) whenever this integral exists.
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βΊA function is convex on if
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46: 16.21 Differential Equation
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βΊ
satisfies the differential equation
βΊ
16.21.1
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βΊWith the classification of §16.8(i), when the only singularities of (16.21.1) are a regular singularity at and an irregular singularity at .
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βΊA fundamental set of solutions of (16.21.1) is given by
βΊ
16.21.2
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47: 17.6 Function
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βΊFor a similar result for -confluent hypergeometric functions see Morita (2013).
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βΊ
Iterations of
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17.6.27
βΊ(17.6.27) reduces to the hypergeometric equation (15.10.1) with the substitutions , , , followed by .
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βΊwhere , , and the contour of integration separates the poles of from those of , and the infimum of the distances of the poles from the contour is positive.
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48: 1.15 Summability Methods
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βΊ(Here and elsewhere in this subsection is a constant such that .)
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βΊ
is a harmonic function in polar coordinates (1.9.27), and
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βΊThe lower limit of the integral in (1.15.47) can be replaced by any constant .
Also, we can replace the lower and upper limits of the integral by and , respectively.
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βΊand either or , then
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49: 13.3 Recurrence Relations and Derivatives
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βΊ
13.3.1
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βΊ
13.3.7
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βΊ
13.3.11
βΊ
13.3.12
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βΊOther versions of several of the identities in this subsection can be constructed with the aid of the operator identity
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