Log

The symbol $\log x$ is used by physicists, engineers, and calculator keypads to denote the Base 10 Logarithm. However, mathematicians generally use the same symbol to mean the Natural Logarithm Ln, $\ln x$. In this work, $\log x=\log_{10} x$, and $\ln x=\log_e x$ is used for the Natural Logarithm.

See also Lg, Ln, Logarithm, Natural Logarithm