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faster Al-Mohy (2025) algorithm for matrix phi function

Status: Open.

#235 In SciML/ExponentialUtilities.jl;

· stevengj opened on Jul 2, 2026

QA: ExplicitImports no_implicit_imports broken — ~31 implicit names from LinearAlgebra/SparseArrays/Printf/PrecompileTools

Status: Open.

#231 In SciML/ExponentialUtilities.jl;

· ChrisRackauckas-Claude opened on Jun 25, 2026

Re-enable downgrade tests

Status: Open.

#208 In SciML/ExponentialUtilities.jl;

· ChrisRackauckas-Claude opened on Jan 14, 2026

expv(A*t)v is slow for A,v sparse (it's fast for v non-sparse)

bugSomething isn't workingSomething isn't working

Status: Open.

#187 In SciML/ExponentialUtilities.jl;

· volkerkarle opened on Feb 24, 2025

Adaptive matrix exponential for given tolerance

Status: Open.

#186 In SciML/ExponentialUtilities.jl;

· nakopylov opened on Jan 3, 2025

exponential!() broken for CuSparseMatrixCSC

bugSomething isn't workingSomething isn't working

Status: Open.

#181 In SciML/ExponentialUtilities.jl;

· mcarmesin opened on Nov 11, 2024

cisv(t, A, b) to compute exp(im*A*t)*b for Hermitian A?

Status: Open.

#176 In SciML/ExponentialUtilities.jl;

· stevengj opened on Jul 14, 2024

expv does not work when used in NonlinearSolve.jl equations

bugSomething isn't workingSomething isn't working

Status: Open.

#173 In SciML/ExponentialUtilities.jl;

· homocomputeris opened on Apr 2, 2024

Occasional LAPACKException(22)

bugSomething isn't workingSomething isn't working

Status: Open.

#171 In SciML/ExponentialUtilities.jl;

· draftman9 opened on Mar 26, 2024

Higher allocations using MMatrix and exponential!

good first issueGood for newcomersGood for newcomers

Status: Open.

#164 In SciML/ExponentialUtilities.jl;

· alblaz opened on Feb 6, 2024

Improve docstrings

Status: Open.

#138 In SciML/ExponentialUtilities.jl;

· ArnoStrouwen opened on Sep 16, 2023

phi! allocates

Status: Open.

#126 In SciML/ExponentialUtilities.jl;

· nathanaelbosch opened on Apr 7, 2023