different between variance vs emulation

English

Alternative forms

• variaunce (obsolete)
• var (abbreviation)

Etymology

From Middle English variance, variaunce, from Old French variance or directly from Anglo-Latin variaunce, veriaunce, wariaunce; all from Latin variantia.

Pronunciation

• (UK) IPA^(key): /?v???i.?ns/
• (US) IPA^(key): /?væ?i.?nts/ (Mary–marry–merry distinction)
• (US) IPA^(key): /?v??i.?nts/ (Mary–marry–merry merger)

Noun

variance (countable and uncountable, plural variances)

1. The act of varying or the state of being variable.
2. A difference between what is expected and what is observed; deviation.
3. The state of differing or being in conflict.
4. An official permit to do something that is ordinarily forbidden by regulations.
5. (law) A discrepancy between two legal documents.
6. (law) A departure from a cause of action originally in a complaint.
8. (statistics) The second central moment in probability.
9. (physics, chemistry, biology) The number of degrees of freedom in a system.
10. (computing, programming) Covariance and contravariance generally.

    Depending on the variance of the type constructor, the subtyping relation of the simple types may be either preserved, reversed, or ignored for the respective complex types.

Derived terms

Translations

French

Etymology

From Latin variantia.

Pronunciation

• IPA^(key): /va.?j??s/
• Rhymes: -??s

Noun

variance f (plural variances)

1. variance

Further reading

• “variance” in Trésor de la langue française informatisé (The Digitized Treasury of the French Language).

English

Alternative forms

• æmulation (archaic)

Etymology

From Middle French émulation, from Latin aemul?ti?nem, accusative singular form of aemul?ti?.

Pronunciation

• (Received Pronunciation) IPA^(key): /??m.j??le??.??n/
• (General American) IPA^(key): /??m.ju?le??.??n/, /-??n/
• Rhymes: -e???n, -e???n

Noun

emulation (countable and uncountable, plural emulations)

1. The endeavor or desire to equal or excel someone else in qualities or actions.

   a great figure who is worthy of respect and emulation

2. (obsolete) Jealous rivalry; envy; envious contention.
   • , New York Review Books 2001, p.263:

     Scarce two gentlemen dwell together in the country […] , but there is emulation betwixt them and their servants, some quarrel or some grudge betwixt their wives or children […]

3. (computing) Running a program or other software designed for a different system, by simulating parts of the other system.

Related terms

• emulate
• emulative
• emulator

Translations

Anagrams

• Manuelito, laumonite