highperfocused/bips
1
0
Fork 0
mirror of https://github.com/bitcoin/bips.git synced 2025-06-22 14:52:00 +02:00
Code Issues Packages Projects Releases Wiki Activity

Merge pull request #103 from xenog/master

Browse Source 
Changed left angles for HTML entity
This commit is contained in:
Wladimir J. van der Laan 2014-10-15 09:50:58 +02:00
commit a21eba9174
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
bip-0037.mediawiki
View File

@ -195,7 +195,7 @@ When loading a filter with the <code>filterload</code> command, there are two pa
Let N be the number of elements you wish to insert into the set and P be the probability of a false positive, where 1.0 is "match everything" and zero is unachievable.
The size S of the filter in bytes is given by <code>(-1 / pow(log(2), 2) * N * log(P)) / 8</code>. Of course you must ensure it does not go over the maximum size (36,000: selected as it represents a filter of 20,000 items with false positive rate of < 0.1% or 10,000 items and a false positive rate of < 0.0001%).
The size S of the filter in bytes is given by <code>(-1 / pow(log(2), 2) * N * log(P)) / 8</code>. Of course you must ensure it does not go over the maximum size (36,000: selected as it represents a filter of 20,000 items with false positive rate of &lt; 0.1% or 10,000 items and a false positive rate of &lt; 0.0001%).
The number of hash functions required is given by <code>S * 8 / N * log(2)</code>.