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Re: Get logarithm of base 10

by dempa (Friar)
on Feb 28, 2006 at 12:51 UTC ( [id://533330]=note: print w/replies, xml ) Need Help??


in reply to Get logarithm of base 10

From "perldoc -f log":

To get the log of another base, use basic algebra: The base-N log of a number is equal to the natural log of that number divided by the natural log of N. For example: 
  sub log10 {
    my $n = shift;
    return log($n)/log(10);
  }

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dempa

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