Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

stdlib: make dot product of Hermitian matrices real #52318

Merged
merged 6 commits into from
Feb 3, 2024
Merged

stdlib: make dot product of Hermitian matrices real #52318

Changes from all commits
Commits
Show all changes
6 commits
Select commit Hold shift + click to select a range
525edb5
make dot product of Hermitian matrices real
araujoms Nov 27, 2023
9f1f5ea
restrict to real or complex Hermitian matrices
araujoms Nov 28, 2023
82cc8c5
Merge branch 'master' into patch-1
dkarrasch Dec 5, 2023
5097097
change into extensible version
araujoms Dec 7, 2023
58f5ed8
Revert "change into extensible version"
araujoms Dec 30, 2023
e7c27fb
Merge branch 'master' into patch-1
dkarrasch Feb 1, 2024
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
10 changes: 5 additions & 5 deletions stdlib/LinearAlgebra/src/symmetric.jl
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -461,17 +461,17 @@ for (T, trans, real) in [(:Symmetric, :transpose, :identity), (:(Hermitian{<:Uni
throw(DimensionMismatch("A has dimensions $(size(A)) but B has dimensions $(size(B))"))
end

dotprod = zero(dot(first(A), first(B)))
dotprod = $real(zero(dot(first(A), first(B))))
@inbounds if A.uplo == 'U' && B.uplo == 'U'
for j in 1:n
for i in 1:(j - 1)
dotprod += 2 * $real(dot(A.data[i, j], B.data[i, j]))
end
dotprod += dot(A[j, j], B[j, j])
dotprod += $real(dot(A[j, j], B[j, j]))
end
elseif A.uplo == 'L' && B.uplo == 'L'
for j in 1:n
dotprod += dot(A[j, j], B[j, j])
dotprod += $real(dot(A[j, j], B[j, j]))
for i in (j + 1):n
dotprod += 2 * $real(dot(A.data[i, j], B.data[i, j]))
end
Expand All @@ -481,11 +481,11 @@ for (T, trans, real) in [(:Symmetric, :transpose, :identity), (:(Hermitian{<:Uni
for i in 1:(j - 1)
dotprod += 2 * $real(dot(A.data[i, j], $trans(B.data[j, i])))
end
dotprod += dot(A[j, j], B[j, j])
dotprod += $real(dot(A[j, j], B[j, j]))
end
else
for j in 1:n
dotprod += dot(A[j, j], B[j, j])
dotprod += $real(dot(A[j, j], B[j, j]))
for i in (j + 1):n
dotprod += 2 * $real(dot(A.data[i, j], $trans(B.data[j, i])))
end
Expand Down