This is what I'd suggest we do for now, while looking at improving the gas compressibility in the future.
The first patch just splits out the gas compressibility into a file of its own, because this is *so* different from everything else we do. The second patch leaves the Redlich-Kwong formula in the source tree, but replaces the actual use with Lubomir's least-square quintic polynomial that matches the Wikipedia table for air at 300K. The quintic formula may be overkill, but it's really simple to calculate and a lot cleaner than my disgusting table lookup. Linus Torvalds (2): gas model: split up gas compressibility into a file of its own gas model: replace Redlich-Kwong with least-square quintic subsurface-core/CMakeLists.txt | 1 + subsurface-core/dive.c | 43 ---------------- subsurface-core/gas-model.c | 111 +++++++++++++++++++++++++++++++++++++++++ 3 files changed, 112 insertions(+), 43 deletions(-) create mode 100644 subsurface-core/gas-model.c -- 2.7.2.334.g7c0da37 _______________________________________________ subsurface mailing list subsurface@subsurface-divelog.org http://lists.subsurface-divelog.org/cgi-bin/mailman/listinfo/subsurface
