10 lines
277 B
Julia
10 lines
277 B
Julia
function Base.binomial{T<:FloatingPoint}(n::T, k::T)
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exp(lfact(n) - lfact(n - k) - lfact(k))
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end
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function Base.factorial{T<:FloatingPoint}(n::T, k::T)
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exp(lfact(n) - lfact(k))
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end
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⊞{T<:Real}(n::T, k::T) = binomial(n, k)
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⊠{T<:Real}(n::T, k::T) = factorial(n, n-k)
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