HH\Lib\Math\log
This API is part of the Hack Standard Library, not HHVM itself.
Returns the logarithm base $base
of $arg
namespace HH\Lib\Math;
function log(
num $arg,
?num $base = null,
): float;
For the exponential function, see Math\exp()
.
Parameters
num $arg
?num $base = null