log, log10, logn
log, log10, logn — calculate logarithms.
Syntax
log (number)
log10 (number)
logn (base, number)
Returns
For log, the natural logarithm of the
argument. For log10, the base 10 logarithm
of the argument. For logn, the logarithm of
the number in the given base.
Description
Non-numeric arguments are treated as zero. Illegal values
for the arguments will cause an error.
Example
Gamma> log(2);
0.69314718055994528623
Gamma> log10(2);
0.30102999566398119802
Gamma> logn(8,2);
2.9999999999999995559
Gamma>
