LLNL / sundials

Official development repository for SUNDIALS - a SUite of Nonlinear and DIfferential/ALgebraic equation Solvers. Pull requests are welcome for bug fixes and minor changes.
https://computing.llnl.gov/projects/sundials
BSD 3-Clause "New" or "Revised" License
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Extending Precision for Some DIRK Methods #593

Closed Steven-Roberts closed 1 month ago

Steven-Roberts commented 1 month ago

The Billington, Cash, and Kvaerno DIRK method coefficients only had ~10-14 digits of accuracy which can be insufficient for double and extended precision. This PR extends the coefficients to 40 digits.