Difference between revisions of "Natural logarithm"

Revision as of 13:16, 18 August 2006

The natural logarithm, denoted $\ln$ , is the logarithm with base e. Thus $\ln(x) = \log_e(x).$

In calculus, the natural logarithm is defined such that $\ln(x) = \int_1^x \frac 1x \ dx$ .