Issues

• ExpMethodHigham2005 fails on FixedSizeMatrix with non-BLAS element types

  SciML/ExponentialUtilities.jl#306 · Filter by author devmotion opened on Oct 6, 2026

• exponential! on ForwardDiff.Dual matrices: generic LU/matmul path, slow SMatrix dual path, reduced derivative accuracy

  SciML/ExponentialUtilities.jl#298 · Filter by author devmotion opened on Sep 30, 2026

• [bug] Platform-sensitive ForwardDiff Jacobian mismatch for immutable SMatrix

  SciML/ExponentialUtilities.jl#269 · Filter by author ChrisRackauckas-Claude opened on Aug 9, 2026

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

  SciML/ExponentialUtilities.jl#231 · Filter by author ChrisRackauckas-Claude opened on Jun 25, 2026

• Re-enable downgrade tests

  SciML/ExponentialUtilities.jl#208 · Filter by author ChrisRackauckas-Claude opened on Jan 14, 2026

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

  bug
  SciML/ExponentialUtilities.jl#187 · Filter by author volkerkarle opened on Feb 24, 2025
  1

• Adaptive matrix exponential for given tolerance

  SciML/ExponentialUtilities.jl#186 · Filter by author nakopylov opened on Jan 3, 2025

• exponential!() broken for CuSparseMatrixCSC

  bug
  SciML/ExponentialUtilities.jl#181 · Filter by author mcarmesin opened on Nov 11, 2024
  3

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

  SciML/ExponentialUtilities.jl#176 · Filter by author stevengj opened on Jul 14, 2024
  4

• Occasional LAPACKException(22)

  bug
  SciML/ExponentialUtilities.jl#171 · Filter by author draftman9 opened on Mar 26, 2024
  1

• Higher allocations using MMatrix and exponential!

  good first issue
  SciML/ExponentialUtilities.jl#164 · Filter by author alblaz opened on Feb 6, 2024
  1

• Improve docstrings

  SciML/ExponentialUtilities.jl#138 · Filter by author ArnoStrouwen opened on Sep 16, 2023

• phi! allocates

  SciML/ExponentialUtilities.jl#126 · Filter by author nathanaelbosch opened on Apr 7, 2023
  2

• exp_generic mutates

  SciML/ExponentialUtilities.jl#125 · Filter by author chriselrod opened on Mar 28, 2023
  1

• Issue with ForwardDiff.jl

  SciML/ExponentialUtilities.jl#111 · Filter by author weinbe58 opened on Nov 18, 2022
  1

• Performance of phi! on diagonal matrices

  SciML/ExponentialUtilities.jl#109 · Filter by author miromarszal opened on Nov 4, 2022
  1

• GPU performance of expv and expv_timestep could maybe be improved

  SciML/ExponentialUtilities.jl#102 · Filter by author ChrisRackauckas opened on Oct 22, 2022

• More matrix exponential methods

  SciML/ExponentialUtilities.jl#69 · Filter by author jarlebring opened on Aug 24, 2021
  5

• Output-sensitive Lanczos iteration

  SciML/ExponentialUtilities.jl#47 · Filter by author mforets opened on Aug 21, 2020
  3

• Avoid generated function in generic_exp

  SciML/ExponentialUtilities.jl#41 · Filter by author andreasnoack opened on Aug 15, 2020

• Add ChainRules rules

  SciML/ExponentialUtilities.jl#40 · Filter by author sethaxen opened on Jul 24, 2020
  12

• Generic mutating exp!

  SciML/ExponentialUtilities.jl#35 · Filter by author andreasnoack opened on Jun 2, 2020

• Enable preconditioning

  SciML/ExponentialUtilities.jl#34 · Filter by author huanglangwen opened on Jun 1, 2020
  1

• Classical Gram-Schmidt with DGKS re-orthogonalization criterion

  SciML/ExponentialUtilities.jl#32 · Filter by author GiggleLiu opened on Apr 7, 2020
  8

• Extending expv using Saad to general phiv?

  SciML/ExponentialUtilities.jl#13 · Filter by author MSeeker1340 opened on Oct 22, 2018
  2