Before proceeding any further, we introduce some useful notation. In mathematics, we often use the upper case Greek letter \(\Sigma \) (sigma) to denote a sum and the Greek letter \(\prod \) (pi) to denote a product.

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The Binomial Coefficients

  • Eric L. F. Roettger,
  • Hugh C. Williams

摘要

Before proceeding any further, we introduce some useful notation. In mathematics, we often use the upper case Greek letter \(\Sigma \) (sigma) to denote a sum and the Greek letter \(\prod \) (pi) to denote a product.