Futurebasic/Language/Reference/log

LOG

Syntax

naturalLog# = LOG(expr)

Description

Returns the natural logarithm of expr. The natural logarithm uses the transcendental number "e" as its base. LOG always returns a double-precision result.

LOG is the inverse of the EXP function. That is: LOG(EXP(x)) equals x.

Note: To find the logarithm of expr for an arbitrary base n, use this formula:

theLog# = LOG(expr)/LOG(n)

See Also

EXP; LOG10; LOG2