Binary logarithm: Difference between revisions
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{{Wikipedia | {{Wikipedia}} | ||
The | The '''binary logarithm''', also called '''dual logarithm''' or '''logarithm base two''' (symbols: '''log<sub>2</sub>''', '''lb''', or '''ld''') of a value ''n'' is the power to which 2 is raised to obtain ''n''. It is part of the conversion formula for [[frequency ratio]] to interval size in [[cent]]s. | ||
== | You can calculate the binary logarithm of ''n'' using the identity: | ||
$$ \log_2(n) = \ln(n) / \ln(2) $$ | |||
== Binary logarithms of the first primes == | |||
{| class="wikitable center-all" | {| class="wikitable center-all" | ||
|- | |- | ||
! | ! ''p'' | ||
! | ! log<sub>2</sub>''p'' | ||
|- | |- | ||
| 2 | | 2 | ||
| Line 39: | Line 43: | ||
|} | |} | ||
[[Category:Elementary math]] | [[Category:Elementary math]] | ||
[[Category:Terms]] | [[Category:Terms]] | ||