Lambert W function

noun

A multivalued function, namely the branches of the converse relation of the function f(w) = weʷ, where w is any complex number and eʷ is the exponential function.

Ask AI about this wordChatGPTClaudePerplexityGoogle AIGrok

Meanings

nounLambert W function (plural Lambert W functions)

plural Lambert W functions

  1. mathematicsA multivalued function, namely the branches of the converse relation of the function f(w) = weʷ, where w is any complex number and eʷ is the exponential function.

Origin

Named after Johann Lambert, who considered a related problem in 1758.

Full word history & related roots →
Cite this entry
APA

Lambert W function. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/Lambert%20W%20function

MLA

“Lambert W function.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/Lambert%20W%20function. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “Lambert W function,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/Lambert%20W%20function.

Source: Lambert W function on Wiktionary, CC BY-SA 4.0.