Question

How to find natural log of a number without using calculator?

Answer 1

$$\begin{gathered} \mathrm{We}\mathrm{know}\mathrm{that}, \\ \ln x=2.303{\log }_{10}\left(x\right) \\ \mathrm{Therefore},\mathrm{to}\mathrm{find}\mathrm{the}\mathrm{value}\mathrm{of}\mathrm{natural}\log , \\ \mathrm{we}\mathrm{need}\mathrm{to}\mathrm{find}\mathrm{the}\mathrm{value}\mathrm{of}\log \mathrm{of}\mathrm{the}\mathrm{number}\mathrm{with}\mathrm{base}10\mathrm{and}\mathrm{the}\mathrm{multiply}\mathrm{the}\mathrm{number}\mathrm{by}2.303 \end{gathered}$$