Saturday, August 3, 2013

How to find the value of a number if its missing from the calculator? Example... log7?

use log conversion formula: 

log%28a%2Cb%29=log%28c%2Ca%29%2Flog%28c%2Cb%29 
where c=e or c=10 (because those bases are commonly on the calculator) 
so for example 
log%287%2C12%29=log%2812%29%2Flog%287%29 

:)

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