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Math Help - Special Functions

  1. #1
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    Special Functions

    How do you figure the degree of the table?

    Let A_i, 1 ≤ i ≤ 5, be the domains for a table D ⊆ A_1 x A_2 x A_3 x A_4 x A_5, where A_1 = {U, V, W, X, Y, Z} (used as code names for different cereals in a test), and A_2 = A_3= A_4 = A_5 = Z^+.

    Table D:

    Code Name of Cereal Grams of Sugar per 1-oz Serving % of RDA^a of Vitamin A per 1-oz Serving % of RDA Vitamin C per 1-oz Serving % of RDA of Protein per 1-oz Serving
    U 1 25 25 6
    V 7 25 2 4
    W 12 25 2 4
    X 0 60 40 20
    Y 3 25 40 10
    Z 2 25 40 10
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  2. #2
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    Re: Special Functions

    Is "the degree of the table" a database concept? You should provide a definition. In mathematics, this is not a universally accepted concept.
    Thanks from Ruun
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  3. #3
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    Re: Special Functions

    I'm really not sure. It's from an exercise in the book and I don't see an example that sheds any light.
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