Issues

• Implicit derivatives disagree with re-solved finite differences at NCSX mode numbers

  proximafusion/vmecpp#954 · Filter by author krystophny opened on Oct 2, 2026
  3

• Replace the fixed time step with a stability-limited step plus an exact geometric feasibility limit

  proximafusion/vmecpp#918 · Filter by author jurasic-pf opened on Sep 29, 2026
  6

• The force residual does not see the axis or iota: at ftol 1e-8 the W7-X axis is 20 mm from its converged position

  proximafusion/vmecpp#840 · Filter by author CharlesCNorton opened on Sep 9, 2026
  3

• The Mercier geodesic term carries a negative floor from the discrete J.B that does not converge in ns

  proximafusion/vmecpp#837 · Filter by author CharlesCNorton opened on Sep 8, 2026

• Add a pull request description template to AGENTS.md

  proximafusion/vmecpp#821 · Filter by author CharlesCNorton opened on Sep 7, 2026
  1

  

• Further improve the preconditioning strategy

  enhancement
  Feature

  proximafusion/vmecpp#818 · Filter by author jurasic-pf opened on Sep 7, 2026
  3

• Solve free boundary once and for all

  Feature

  proximafusion/vmecpp#628 · Filter by author jurasic-pf opened on Jul 9, 2026
  9

• [ad-gpu-01] prove Enzyme differentiation for one CUDA physics kernel

  proximafusion/vmecpp#609 · Filter by author krystophny opened on Jul 8, 2026

• Consider packaging and distribution of vmecpp on conda-forge

  Task

  proximafusion/vmecpp#470 · Filter by author matthewfeickert opened on Mar 31, 2026
  8

• Sparse Fourier coefficients

  Feature

  proximafusion/vmecpp#315 · Filter by author missing-user opened on May 5, 2025