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847天前#----------------------------- |
$log_e = log(VALUE); |
#----------------------------- |
use POSIX qw(log10); |
$log_10 = log10(VALUE); |
#----------------------------- |
sub log_base { |
my ($base, $value) = @_; |
return log($value)/log($base); |
} |
#----------------------------- |
# log_base defined as above |
$answer = log_base(10, 10_000); |
print "log10(10,000) = $answer\n"; |
# log10(10,000) = 4 |
#----------------------------- |
use Math::Complex; |
printf "log2(1024) = %lf\n", logn(1024, 2); # watch out for argument order! |
# log2(1024) = 10.000000 |
#----------------------------- |
