with two variables
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21—30 of 161 matching pages
21: 19.23 Integral Representations
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19.23.3
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22: 18.1 Notation
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Classical OP’s in Two Variables
…23: 19.18 Derivatives and Differential Equations
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19.18.1
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24: Bibliography K
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Two-variable Analogues of the Classical Orthogonal Polynomials.
In Theory and Application of Special Functions, R. A. Askey (Ed.),
pp. 435–495.
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25: 1.9 Calculus of a Complex Variable
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Continuity
… ►That is, given any positive number , however small, we can find a positive number such that for all in the open disk . ►A function of two complex variables is continuous at if ; compare (1.5.1) and (1.5.2). …26: Mathematical Introduction
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►Special functions with one real variable are depicted graphically with conventional two-dimensional (2D) line graphs.
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►With two real variables, special functions are depicted as 3D surfaces, with vertical height corresponding to the value of the function, and coloring added to emphasize the 3D nature.
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►Special functions with a complex variable are depicted as colored 3D surfaces in a similar way to functions of two real variables, but with the vertical height corresponding to the modulus (absolute value) of the function.
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27: 18.37 Classical OP’s in Two or More Variables
§18.37 Classical OP’s in Two or More Variables
…28: 36.2 Catastrophes and Canonical Integrals
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►For more extensive lists of normal forms of catastrophes (umbilic and beyond) involving two variables (“corank two”) see Arnol’d (1972, 1974, 1975).
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29: 19.24 Inequalities
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►The condition for (19.24.1) and (19.24.2) serves only to identify as the smaller of the two nonzero variables of a symmetric function; it does not restrict validity.
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30: 1.3 Determinants, Linear Operators, and Spectral Expansions
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►An alternant is a determinant function of
variables which changes sign when two of the variables are interchanged.
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