怎么运算数字相连复式?

来源:百度知道 编辑:UC知道 时间:2024/06/01 08:20:59
比如1-2-3可以连为三注(1-2、1-3、2-3),那么1到100怎么算出呢?

\!\(\*
RowBox[{
RowBox[{
RowBox[{
RowBox[{
RowBox[{"(", "\[NegativeThinSpace]", GridBox[{
{"100"},
{"2"}
}], "\[NegativeThinSpace]", ")"}], "+",
RowBox[{"(", "\[NegativeThinSpace]", GridBox[{
{"100"},
{"3"}
}], "\[NegativeThinSpace]", ")"}], "+"}], "..."}], "+",
RowBox[{"(", "\[NegativeThinSpace]", GridBox[{
{"100"},
{"99"}
}], "\[NegativeThinSpace]", ")"}]}], "==",
RowBox[{\(2\^100\), "-",
RowBox[{"(", "\