HalfIntegerBinom function

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Namespace: Microsoft.Quantum.Math

Package: Microsoft.Quantum.Standard

Returns a binomial coefficient of the form "½-choose-k."

function HalfIntegerBinom (k : Int) : Double

Description

Given an integer $k$, returns the binomial coefficient $(\frac{1}{2} k)$, also known as $\frac{1}{2}$-choose-$k$.

Input

k : Int

The integer to compute the half-integer binomial coefficient of.

Output : Double

The binomial coefficient $(\frac{1}{2} k)$.