https://help.zoho.com/portal/en/kb/sheet/functions/complex/articles/imln
IMLN function - Zoho Sheet - Help Guide
Returns the natural logarithm of a complex number.
zoho sheetfunctionhelpguide
https://support.google.com/docs/answer/9000651?hl=en-GB&ref_topic=3105474
IMLN function - Google Docs Editors Help
The IMLN function returns the logarithm of a complex number, base e (Euler's number). Parts of a IMLN formula The IMLN formula is formatted as =IIMLN(number)....
google docsfunctioneditorshelp