Skip to content

Ln

The natural logarithm, the inverse of Exp.

WikipediaNatural logarithmMathWorldNaturalLogarithmWikidataQ204037Britannicatopic/natural-logarithmDLMF4.2.E2FungrimLogFungrim entryWolfram LanguageLog
Ln(x)the natural logarithm of x, base .
SageMathlog(x)SymPylog(x)mpmathlog(x)

Domain: Elementary functions

Details
  • Inverse of Exp: .
  • The natural logarithm. Note compute-engine's own Log is not a synonym: it defaults to base 10 (see that entry).
  • ; a negative real argument leaves the plain evaluation symbolic rather than jumping to a complex value.

Examples

See also: Exp, Log, Log2