h.sort

来自「强大的数学工具包」· SORT 代码 · 共 33 行

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                               *   sort    *
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        "sort polynomial"
        SYNTAX: X = sort(P, X1, X2, ..., Xn)

        P is an expression whose value is a polynomial in the variables 
        X1, ..., Xn over Z, Q, Z/mZ, GF(p^t), a number field, over R or
        C, and n>0. 
        
        X is assigned the polynomial P sorted with respect to the 
        specified order of variables.


        Example 1: (correct)

                sort(x + y + z, y, z, x)


        Example 2: (incorrect)

                sort(x*y*z, x, z)
                
_ERR_NR_034_sort_


        Example 3: (incorrect)

                sort((x*y)/(x + y), x, y)
                
_ERR_NR_057