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| author | Vincent Rouvreau <vincent.rouvreau@inria.fr> | 2022-03-30 12:22:56 +0200 |
|---|---|---|
| committer | Vincent Rouvreau <vincent.rouvreau@inria.fr> | 2022-03-30 12:22:56 +0200 |
| commit | 495f3d9b51f5ed48151118fedcc61f5067f04d51 (patch) | |
| tree | c0f79fdeb351621a4d5a115536a856fe9e2bf6d2 /src/python/doc/alpha_complex_user.rst | |
| parent | 53818204ba2f914c89e21deb6bfe7cb4a0122718 (diff) | |
get/set float_relative_precision and its documentation
Diffstat (limited to 'src/python/doc/alpha_complex_user.rst')
| -rw-r--r-- | src/python/doc/alpha_complex_user.rst | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/python/doc/alpha_complex_user.rst b/src/python/doc/alpha_complex_user.rst index cfd22742..b060c86e 100644 --- a/src/python/doc/alpha_complex_user.rst +++ b/src/python/doc/alpha_complex_user.rst @@ -27,7 +27,8 @@ Remarks If you pass :code:`precision = 'exact'` to :func:`~gudhi.AlphaComplex.__init__`, the filtration values are the exact ones converted to float. This can be very slow. If you pass :code:`precision = 'safe'` (the default), the filtration values are only - guaranteed to have a small multiplicative error compared to the exact value. + guaranteed to have a small multiplicative error compared to the exact value, see + :func:`~gudhi.AlphaComplex.set_float_relative_precision` to modify the precision. A drawback, when computing persistence, is that an empty exact interval [10^12,10^12] may become a non-empty approximate interval [10^12,10^12+10^6]. Using :code:`precision = 'fast'` makes the computations slightly faster, and the combinatorics are still exact, but |