Should use Sparspak with BigFloat

Author: ErikQQY

Project.toml

@@ -58,6 +58,7 @@ Random = "1.10"
 ReTestItems = "1.29"
 Reexport = "1.2"
 SciMLBase = "2.82"
+Sparspak = "0.3.11"
 StaticArrays = "1.9.8"
 Test = "1.10"
 julia = "1.10"
@@ -76,8 +77,9 @@ Pkg = "44cfe95a-1eb2-52ea-b672-e2afdf69b78f"
 Random = "9a3f8284-a2c9-5f02-9a11-845980a1fd5c"
 ReTestItems = "817f1d60-ba6b-4fd5-9520-3cf149f6a823"
 RecursiveArrayTools = "731186ca-8d62-57ce-b412-fbd966d074cd"
+Sparspak = "e56a9233-b9d6-4f03-8d0f-1825330902ac"
 StaticArrays = "90137ffa-7385-5640-81b9-e52037218182"
 Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
 
 [targets]
-test = ["Aqua", "DiffEqDevTools", "Hwloc", "InteractiveUtils", "JET", "LinearSolve", "NonlinearSolveFirstOrder", "ODEInterface", "OrdinaryDiffEq", "Pkg", "Random", "ReTestItems", "RecursiveArrayTools", "StaticArrays", "Test"]
+test = ["Aqua", "DiffEqDevTools", "Hwloc", "InteractiveUtils", "JET", "LinearSolve", "NonlinearSolveFirstOrder", "ODEInterface", "OrdinaryDiffEq", "Pkg", "Random", "ReTestItems", "RecursiveArrayTools", "Sparspak", "StaticArrays", "Test"]

test/misc/bigfloat_test.jl

@@ -1,5 +1,8 @@
 @testitem "BigFloat compatibility" begin
     using BoundaryValueDiffEq
+    # Need Sparspak for BigFloat
+    using Sparspak
+
     tspan = (0.0, pi / 2)
     function simplependulum!(du, u, p, t)
         θ = u[1]