h.vcoef

强大的数学工具包

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                               *   vcoef   *
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        "vector coefficient"
        SYNTAX: X = vcoef(V, l)

        V is an expression whose value is a vector of length n.
        l is a positive integer, 0 < l <= n.

        X is assigned the l-th coefficient of V.


        Example 1: (correct)

                vcoef({NF(A),3,z^2-NF(A^3)}, 3)


        Example 2: (incorrect)

                vcoef({1,2,3}, 4)

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