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GroupRings.jl
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groupring_mult should preserve type, when possible

This commit is contained in:
kalmar 2017-05-17 11:39:19 +02:00
parent 2c43984e19
commit 04ee0ac659
1 changed files with 12 additions and 2 deletions
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14
src/GroupRings.jl
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@ -229,8 +229,18 @@ function groupring_mult!(X,Y,pm,result)
return result
end
function group_star_multiplication{T<:Number}(X::GroupRingElem{T},
Y::GroupRingElem{T})
function groupring_mult{T<:Number}(X::AbstractVector{T}, Y::AbstractVector{T},
pm::Array{Int,2})
result = zeros(X)
return groupring_mult!(X,Y,pm,result)
end
function groupring_mult(X::AbstractVector, Y::AbstractVector, pm::Array{Int,2})
T = promote_type(eltype(X), eltype(Y))
result = zeros(T, X)
return groupring_mult!(X,Y,pm,result)
end
parent(X) == parent(Y) || throw(ArgumentError(
"Elements don't seem to belong to the same Group Algebra!"))
result = algebra_multiplication(X.coeffs, Y.coeffs, X.pm)