Logarithmus
$b^y = x \iff y = \log_b(x)$
$4^y = 16 \iff y = \log_4(16) = 2$
$\log_e(x) = ln(x)$
$e^{\ln(x)} = x$
$ln(e^x) = x$
Mitglied in
$b^y = x \iff y = \log_b(x)$
$4^y = 16 \iff y = \log_4(16) = 2$
$\log_e(x) = ln(x)$
$e^{\ln(x)} = x$
$ln(e^x) = x$