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Futurebasic/Language/Reference/log
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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