How to pronounce Cholesky (and the alternate readings)

Q: How do you pronounce Cholesky?

Cholesky is pronounced "shuh LESS kee" (/ʃəˈlɛski/). Stress on the SECOND syllable: shuh-LESS-kee. Named after French mathematician/military officer André-Louis Cholesky (decomposition posthumously published 1924). Wikipedia gives /ʃəˈlɛski/ — the onset is 'sh', NOT a hard 'k'. The decomposition is everywhere in numerical computing / ML (covariance factorization, linear solvers, Gaussian processes), so the mispronunciation gets repeated constantly. English speakers overwhelmingly default to the spelling-driven 'koh-LESS-kee' (hard C), and many keep that even after being corrected, which is why it's genuinely contested rather than a clean single answer. Source: Wikipedia — Cholesky decomposition.

Q: What is the IPA for Cholesky?

The IPA for Cholesky is /ʃəˈlɛski/, respelled "shuh LESS kee".

How to pronounce Cholesky

cs-term contested

shuh LESS kee /ʃəˈlɛski/ mp3

or: koh LESS kee /koʊˈlɛski/

Cholesky is most commonly pronounced "shuh LESS kee" (/ʃəˈlɛski/). This is one of several readings in active use; the developer community hasn't converged on a single answer.

Stress on the SECOND syllable: shuh-LESS-kee. Named after French mathematician/military officer André-Louis Cholesky (decomposition posthumously published 1924). Wikipedia gives /ʃəˈlɛski/ — the onset is 'sh', NOT a hard 'k'. The decomposition is everywhere in numerical computing / ML (covariance factorization, linear solvers, Gaussian processes), so the mispronunciation gets repeated constantly. English speakers overwhelmingly default to the spelling-driven 'koh-LESS-kee' (hard C), and many keep that even after being corrected, which is why it's genuinely contested rather than a clean single answer.

Alternate readings you might hear:

"koh LESS kee" /koʊˈlɛski/

Source: Wikipedia — Cholesky decomposition

Pronouncing project and product names correctly avoids the small but persistent friction of being gently corrected during standups, conference Q&As, and team calls. Hearing the word a few times locks in the right reading better than reading IPA ever will. Pronounce is a community-maintained dictionary — every entry tagged with a confidence level and (where possible) a citable source.

How do you pronounce Cholesky?

Cholesky is pronounced "shuh LESS kee" (/ʃəˈlɛski/). Stress on the SECOND syllable: shuh-LESS-kee. Named after French mathematician/military officer André-Louis Cholesky (decomposition posthumously published 1924). Wikipedia gives /ʃəˈlɛski/ — the onset is 'sh', NOT a hard 'k'. The decomposition is everywhere in numerical computing / ML (covariance factorization, linear solvers, Gaussian processes), so the mispronunciation gets repeated constantly. English speakers overwhelmingly default to the spelling-driven 'koh-LESS-kee' (hard C), and many keep that even after being corrected, which is why it's genuinely contested rather than a clean single answer. Source: Wikipedia — Cholesky decomposition.

What is the IPA for Cholesky?

The IPA for Cholesky is /ʃəˈlɛski/, respelled "shuh LESS kee".

Is Cholesky sometimes pronounced "koh LESS kee"?

Yes — "koh LESS kee" (/koʊˈlɛski/) is one of the alternate readings of Cholesky in active use.

Hear it from the command line

$ say-it Cholesky # primary × 3 + audible "or: …" for each alternate

$ say-it --alt Cholesky # focus on the first alternate

$ say-it --all Cholesky # primary AND every alternate, each repeated

$ say-it --solo Cholesky # primary only, no "or: …" tail

$ say-it --why Cholesky # print the dict entry with source URL

Install the CLI: git clone https://github.com/anzy-renlab-ai/pronounce.git && cd pronounce && ./install.sh

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