diff options
| author | Eric S. Raymond <esr@thyrsus.com> | 2010-03-01 02:22:09 +0000 |
|---|---|---|
| committer | Eric S. Raymond <esr@thyrsus.com> | 2010-03-01 02:22:09 +0000 |
| commit | be999328539ec1622913d7c2a53877e86d76bcd5 (patch) | |
| tree | dec84c1cc99d0bca54bcdf53c53aa9cdcbf731b7 /TODO | |
| parent | 9953e6773f5c7a942db1ddc46f77eead7a305b56 (diff) | |
| download | gpsd-be999328539ec1622913d7c2a53877e86d76bcd5.tar.gz | |
The numeric instability in earth_distance() has been fixed.
Diffstat (limited to 'TODO')
| -rw-r--r-- | TODO | 11 |
1 files changed, 0 insertions, 11 deletions
@@ -44,17 +44,6 @@ anyone has hand-validated the expected output. architecture; the machine in question above is an Intel CPU under Xen.) -**** navcom.chk: - -This testfile triggers a numeric instability in the earth_distance() -function. The result is that epd is unstable. What we should do is -use the official US Government function for -calculating earth distances: INVERSE. See -http://www.ngs.noaa.gov/TOOLS/Inv_Fwd/Inv_Fwd.html => -http://www.ngs.noaa.gov/PC_PROD/Inv_Fwd/source/ - -Useful tool for the purpose: http://www.netlib.org/f2c/ - **** superstar2.chk: Packet detection appears to fail completely on big-endian machines. |