ln

 

English Wikipedia has an article on:

Natural logarithm

Wikipedia

(mathematics): Probably from New Latin logarithmus naturalis (“natural logarithm”). At the time of the discovery of logarithms and e, Latin was the language of science.

ln

1. (mathematics) natural logarithm; logarithm to the base e.

   ${\displaystyle \ln x=\log _{e}x}$ 
   ${\displaystyle \ln e=1}$ 

2. (international standards) ISO 639-1 language code for Lingala.

• ld, lg, lb, log

• ln.

ln

1. Abbreviation of lane.

• NL