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WMPRO, WMMINI FW >= 1.0 WMMEGA FW >= 2.0
Return natural logarithm of a number
$number: A number
Float: Natural logarithm of number
<? $val=ln(1); print($val); // outputs 0 ?>
The natural logarithm of a number is its logarithm to the base of the mathematical constant e, where e is an irrational and transcendental number approximately equal to 2.718281828459.
log10() - Return base 10 logarithm of a number