Fix error in RK4 coefficients#29
Merged
Merged
Conversation
Contributor
There was a problem hiding this comment.
Pull request overview
This PR fixes the classic RK4 stage-4 coefficient/time evaluation in gsDynamicRK4::_step_impl, aligning the integrator with the standard Runge–Kutta 4 method (as referenced in the PR description).
Changes:
- Corrected stage-4 state extrapolation from
dt/2todtfor both linear and nonlinear_step_implvariants. - Updated stage-4 force/residual evaluation time from
t + dt/2tot + dt. - Minor namespace-closing line formatting normalization.
💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.
hverhelst
approved these changes
Jun 26, 2026
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
https://en.wikipedia.org/wiki/Runge%E2%80%93Kutta_methods