kalmar/PropertyT.jl
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we don't need to pass id element -- it could be derived from S

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kalmarek 2017-10-27 14:29:47 +02:00
parent 32c020fd88
commit 94c9a75a21
1 changed files with 4 additions and 4 deletions
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8
src/SDPs.jl
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@ -13,18 +13,18 @@ function constraints_from_pm(pm, total_length=maximum(pm))
return constraints return constraints
end end
function splaplacian{TT<:Group}(RG::GroupRing{TT}, S, Id=RG.group(), T::Type=Float64) function splaplacian(RG::GroupRing, S, T::Type=Float64)
result = RG(T) result = RG(T)
result[Id] = T(length(S)) result[RG.group()] = T(length(S))
for s in S for s in S
result[s] -= one(T) result[s] -= one(T)
end end
return result return result
end end
function splaplacian{TT<:Ring}(RG::GroupRing{TT}, S, Id=one(RG.group), T::Type=Float64) function splaplacian{TT<:Ring}(RG::GroupRing{TT}, S, T::Type=Float64)
result = RG(T) result = RG(T)
result[Id] = T(length(S)) result[one(RG.group)] = T(length(S))
for s in S for s in S
result[s] -= one(T) result[s] -= one(T)
end end