Futurebasic/Language/Reference/log
LOG[edit | edit source]
Syntax[edit | edit source]
naturalLog# = LOG(expr)
Description[edit | edit source]
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[edit | edit source]
EXP; LOG10; LOG2