From 44d9d30e077d7dd59a777cd9f9fcef29be13fb53 Mon Sep 17 00:00:00 2001
From: Sheehan Olver <solver@mac.com>
Date: Mon, 23 Feb 2026 08:47:50 +0000
Subject: [PATCH 1/2] support sum in generator syntax

---
 Project.toml      | 2 +-
 src/rect.jl       | 3 ++-
 test/test_rect.jl | 8 ++++++++
 3 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/Project.toml b/Project.toml
index 6c2dfe1..96394de 100644
--- a/Project.toml
+++ b/Project.toml
@@ -44,7 +44,7 @@ InfiniteArrays = "0.15"
 InfiniteLinearAlgebra = "0.10"
 LazyArrays = "2.3.1"
 LazyBandedMatrices = "0.11.7"
-QuasiArrays = "0.13.1"
+QuasiArrays = "0.13.3"
 Random = "1"
 RecurrenceRelationships = "0.2"
 SpecialFunctions = "1, 2"
diff --git a/src/rect.jl b/src/rect.jl
index ec1082a..68c8795 100644
--- a/src/rect.jl
+++ b/src/rect.jl
@@ -108,10 +108,11 @@ function *(A::TensorPlan, B::AbstractArray)
 end
 
 function checkpoints(P::RectPolynomial)
-    x,y = checkpoints.(P.args)
+    x,y = map(checkpoints,P.args)
     SVector.(x, y')
 end
 
+
 function plan_transform(P::KronPolynomial{d,<:Any,<:Fill}, (B,)::Tuple{Block{1}}, dims=1:1) where d
     @assert only(dims) == 1
 
diff --git a/test/test_rect.jl b/test/test_rect.jl
index a8f9007..ed650f1 100644
--- a/test/test_rect.jl
+++ b/test/test_rect.jl
@@ -297,4 +297,12 @@ Random.seed!(3242)
         @test Q[SVector(0.1,0.2),2] ≈ (cos(0.1) - sin(1))/sqrt(2cos(2) + sin(2))
         @test Q[SVector(0.1,0.2),3] ≈ (cos(0.2) - sin(1))/sqrt(2cos(2) + sin(2))
     end
+
+    @testset "sum/expand on rectangles" begin
+        @test expand(exp(x*cos(y)) for (x,y) in ChebyshevInterval()^2)[SVector(0.1,0.2)] ≈ exp(0.1*cos(0.2))
+
+        @test sum(exp(x*cos(y)) for (x,y) in ChebyshevInterval()^2) ≈ 4.504564632388105
+        @test sum(exp(x*cos(y)) for (x,y) in (0..1) × (1/3..1/2)) ≈ 0.27240475761608607
+        @test sum(exp(x*cos(y)) for (x,y) in Inclusion((0..1) × (0..1))) ≈ sum(exp(x*cos(y)) for x in 0..1, y in 0..1) ≈ 1.5744082630525795 
+    end
 end

From c838e31e9191d8376707e38500b007797b8f6ed3 Mon Sep 17 00:00:00 2001
From: Sheehan Olver <solver@mac.com>
Date: Tue, 24 Feb 2026 10:36:38 +0000
Subject: [PATCH 2/2] Update Project.toml

---
 Project.toml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Project.toml b/Project.toml
index 96394de..a218a7a 100644
--- a/Project.toml
+++ b/Project.toml
@@ -35,7 +35,7 @@ BandedMatrices = "1"
 BlockArrays = "1.7.3"
 BlockBandedMatrices = "0.13"
 ClassicalOrthogonalPolynomials = "0.15.8"
-ContinuumArrays = "0.20"
+ContinuumArrays = "0.20.4"
 DomainSets = "0.7"
 FastTransforms = "0.17"
 FillArrays = "1.0"