# Ln

(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
$$\ln \!=\!\log_{\mathrm e}\!=\!\mathrm{Log}$$ is name of natural logarithmic function, that appears as solution of the differential equation
$$\displaystyle \ln'(z)=\frac{1}{z}$$
$$\ln(z)=\exp^{-1}(z)$$