Mathematics(41)-Calculate permutation and combination Binomial

  • The mathematical formula of combination
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    , so the calculation method of mathematics is: Binomial[n, m]

  • The mathematical formula of arrangement
    Binomial[3, 1] + Binomial[3, 2] + Binomial[3, 3]
    , so the calculation method of mathematics is: m! * Binomial[n, m]

For example input and output examples are: 

 

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Origin blog.csdn.net/qq_25018077/article/details/132357271