Gaußian binomial coëfficient

The Guaßian binomial coëfficient is a $𝑞$ -analogue of the binomial coëfficient, given by #m/def/num

(𝑛 𝑑) 𝑞 = 𝑑 - 1 \prod 𝑖 = 0 𝑞 𝑛 - 𝑖 - 1 𝑞 𝑖 + 1 - 1

Mathematica

The Gaußian binomial coëfficient $(𝑛 𝑑) 𝑞$ may be generated in Wolfram Mathematica with QBinomial[n,d,q].

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