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12 cards from this deck
Rewriting a log with one base using logs with a different base
Calculators only support base 10 (logloglog) or base e (lnlnln)
logbx=logaxlogab\log_b x = \frac{\log_a x}{\log_a b}logbx=logablogax
Original base
New base
Argument of the logarithm
a=10a = 10a=10 (common log) or a=ea = ea=e (natural log)
Change the bigger base
222
x=8x = 8x=8
x=18x = \frac{1}{8}x=81
log2xlog24\frac{\log_2 x}{\log_2 4}log24log2x
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