Compute natural logarithm in PHP, JS and Python
John Napier is best known as the discoverer of logarithms.
##Note:
ln(a) = x <=> a = e^x => f(x) = e^x - a => f : (0, infinit) --> R
Natural Logarithm implemented in JavaScript, PHP and Python.
John Napier is best known as the discoverer of logarithms.
##Note:
ln(a) = x <=> a = e^x => f(x) = e^x - a => f : (0, infinit) --> R
Natural Logarithm implemented in JavaScript, PHP and Python.
http://thinkphp.github.com/napier/