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# 71. makeOrders

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## 71.1 Functions and Variables for makeOrders

関数: makeOrders (indvarlist,orderlist)

  引数までの多項式のべきすべてのリストを返します。

      (%i1) load("makeOrders")$

      (%i2) makeOrders([a,b],[2,3]);
      (%o2) [[0, 0], [0, 1], [0, 2], [0, 3], [1, 0], [1, 1],
                  [1, 2], [1, 3], [2, 0], [2, 1], [2, 2], [2, 3]]
      (%i3) expand((1+a+a^2)*(1+b+b^2+b^3));
             2  3      3    3    2  2      2    2    2
      (%o3) a  b  + a b  + b  + a  b  + a b  + b  + a  b + a b
                                                        2
                                                 + b + a  + a + 1

  ここで、 `[0, 1]`は項 bに関連づけられ、 `[2, 3]`は a^2 b^3に関連づけられます。

  この関数を使うには最初に `load("makeOrders")`と書いてください。

  Categories: Polynomials · Share packages · Package makeOrders

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