Log2: Difference between revisions

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The symbols '''log2''', '''lb''' or '''ld''' are used for the '''[http://en.wikipedia.org/wiki/Binary_logarithm binary logarithm]''', also called '''dual logarithm''' or '''logarithm base two'''.
The symbols '''log2''', '''lb''' or '''ld''' are used for the '''[[Wikipedia: Binary logarithm|binary logarithm]]''', also called '''dual logarithm''' or '''logarithm base two'''.


== Log2 of the first primes ==
== Log2 of the first primes ==


{| class="wikitable"
{| class="wikitable center-all"
! [[prime]]
! [[Prime]]
! log2 prime
! Log2 Prime
|-
|-
| 2
| 2
| 1
| 1.000000000
|-
|-
| 3
| 3
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[[Category:Practical help]]
[[Category:Practical help]]
[[Category:Terms]]
[[Category:Terms]]
[[Category:Todo:improve synopsis]]
 
{{todo| improve synopsis }}

Revision as of 07:07, 6 May 2021

The symbols log2, lb or ld are used for the binary logarithm, also called dual logarithm or logarithm base two.

Log2 of the first primes

Prime Log2 Prime
2 1.000000000
3 1.584962501
5 2.321928095
7 2.807354922
11 3.459431619
13 3.700439718
17 4.087462841
19 4.247927513
23 4.523561956
29 4.857980995

You can calculate the binary logarithm of n like this:

log2(n) = ln(n)/ln(2)