======ln====== WMPRO, WMMINI FW >= 1.0 WMMEGA FW >= 2.0 Return the natural logarithm of a number ====Description==== float ln ( number $number ) ====Parameter==== $number: A number ====Return Values==== Float: Natural logarithm of the number ====Examples==== ====Note==== 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. ====See Also==== [[log10()]] - Return the base 10 logarithm of a number [[power()]] - Return base raised to the power of exp