Physics Abstraction Adviser Logs

 15 July 02:43   =Review of logs =

    Been a while back you acclimated logs ? Actuality is a quick refresher for you.

    A log (short for logarithm) is an exponent.

    Logs are in abject 10. An access of 1 in a log is agnate to an access by a ability of 10 in accustomed notation. In logs, 3 is 100 times the admeasurement of 1.

    

if: y = 10x     then: log(y) = x     therefore: log(10–12) = –12     also: log(1000) = 3

    

logA + logB = log(AB)     logA – logB = log(A/B)     log(AB) = B log(A)

    Adding the log of A to the log of B will accord the aforementioned aftereffect as demography the log of the artefact A times B.

    Subtracting the log of B from the log of A will accord the aforementioned aftereffect as demography the log of the caliber A disconnected by B.

    The log of (A to the Bth power) is according to the artefact (B times the log of A).

    A few examples:

    log(2) + log(3) = log(6)

    log(30) – log(2) = log(15)

    log(8) = log(2³) = 3log(2)