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authorMarc Glisse <marc.glisse@inria.fr>2022-11-16 09:46:14 +0100
committerMarc Glisse <marc.glisse@inria.fr>2022-11-16 09:46:14 +0100
commitcd613b73b3a9181c1358e1b37d56029f46eb9c91 (patch)
treede0ced04b3dcea2f6f439346c8a2ec0bc1bd66d2 /src/Cech_complex/utilities/cechcomplex.md
parent19412d57d281acfd2d14efd15764e45da837b87a (diff)
parent7c064bb64135bd94417ec7a52eeb2bee0a115075 (diff)
Merge branch 'master' into insert
Diffstat (limited to 'src/Cech_complex/utilities/cechcomplex.md')
-rw-r--r--src/Cech_complex/utilities/cechcomplex.md8
1 files changed, 7 insertions, 1 deletions
diff --git a/src/Cech_complex/utilities/cechcomplex.md b/src/Cech_complex/utilities/cechcomplex.md
index 821e4dad..0e82674d 100644
--- a/src/Cech_complex/utilities/cechcomplex.md
+++ b/src/Cech_complex/utilities/cechcomplex.md
@@ -26,7 +26,11 @@ a prime number).
**Usage**
-`cech_persistence [options] <OFF input file>`
+`cech_persistence [options] <input OFF file>`
+
+where
+`<input OFF file>` is the path to the input point cloud in
+[nOFF ASCII format]({{ site.officialurl }}/doc/latest/fileformats.html#FileFormatsOFF).
**Allowed options**
@@ -36,6 +40,8 @@ a prime number).
* `-d [ --cpx-dimension ]` (default = 1) Maximal dimension of the Čech complex we want to compute.
* `-p [ --field-charac ]` (default = 11) Characteristic p of the coefficient field Z/pZ for computing homology.
* `-m [ --min-persistence ]` (default = 0) Minimal lifetime of homology feature to be recorded. Enter a negative value to see zero length intervals.
+* `-e [ --exact ]` for the exact computation version.
+* `-f [ --fast ]` for the fast computation version.
Beware: this program may use a lot of RAM and take a lot of time if `max-edge-length` is set to a large value.