* If it is required to use a single number X as an estimate for the value of numbers, then the arithmetic mean does this best, in the sense of minimizing the sum of squares ( x < sub > i </ sub > − X )< sup > 2 </ sup > of the residuals.

) Then X < sub > i </ sub > is the value ( or realization ) produced by a given run of the process at time i. Suppose that the process is further known to have defined values for mean μ < sub > i </ sub > and variance σ < sub > i </ sub >< sup > 2 </ sup > for all times i. Then the definition of the autocorrelation between times s and t is

: CH < sub > 2 </ sub >= CH < sub > 2 </ sub > + X < sub > 2 </ sub > + H < sub > 2 </ sub > O </ sub > → XCH < sub > 2 </ sub >- CH < sub > 2 </ sub > OH

Alkynes characteristically undergo reactions that show that they are " doubly unsaturated ," meaning that each alkyne unit is capable of adding two equivalents of H < sub > 2 </ sub >, halogens or related HX reagents ( X = halide, pseudohalide, etc .).

EFI booting has been supported in only Microsoft Windows versions supporting GPT, the Linux kernel 2. 6. 1 and later, and Mac OS X on Intel-based Macs.

it has 2 < sup > n </ sup > distinct terms corresponding to all the subsets of S, each subset giving the product of the corresponding variables X < sub > s </ sub >.

These include the cranial nerves number 2 ( CN II ), number 3 ( CN III ), number 5 ( CN V ), number 7 ( CN VII ), and cranial nerves 9 and 10 ( CN IX, CN X ).

* Two compact Hausdorff spaces X < sub > 1 </ sub > and X < sub > 2 </ sub > are homeomorphic if and only if their rings of continuous real-valued functions C ( X < sub > 1 </ sub >) and C ( X < sub > 2 </ sub >) are isomorphic.

; Macintosh Common Lisp: Version 5. 2 for Apple Macintosh computers with a PowerPC processor running Mac OS X is open source.

Retrieved at < http :// books. google. com / books? id = NztlWQeXf2IC & printsec = frontcover & dq = zhou + enlai & hl = en & ei = wBkuTdKyB4H_8AaJucigAQ & sa = X & oi = book_result & ct = result & resnum = 2 & ved = 0CCsQ6AEwAQ # v = onepage & q & f = false > on March 12, 2011. p. 38 </ ref > More liberal estimates regarding the White Terror in China, estimate it took millions of lives, most of them in the rural areas.

The black dot shows the point with coordinates X = 2, Y = 3, and Z = 4, or ( 2, 3, 4 ).

At 21: 00 on 28 June, X Corps — organised into brigade groups — headed south.

In March 1273 he was elected Archbishop of Braga, but did not assume that post because on 3 June 1273 Gregory X created him Cardinal-Bishop of Frascati.

On the 8th of June Clement X took possession of St. John Lateran.

The Pontifical Commission Ecclesia Dei is a commission of the Roman Catholic Church established by Pope John Paul II's motu proprio Ecclesia Dei of 2 July 1988 for the care of those former followers of Archbishop Marcel Lefebvre who broke with him as a result of his consecration of four priests of his Society of St. Pius X as bishops on 30 June 1988, an act the Holy See deemed illicit and schismatic.

While under the emperor's patronage, Josephus wrote that after the Roman Legio X Fretensis, accompanied by Vespasian, destroyed Jericho on 21 June 68, Vespasian took a group of Jews who could not swim ( possibly Essenes from Qumran ), fettered them, and threw them into the Dead Sea to test the sea's legendary buoyancy.

X was introduced to the MIT Project Athena community in the following email in June 1984:

In 1987, with the success of X11 becoming apparent, MIT wished to relinquish the stewardship of X, but at a June 1987 meeting with nine vendors, the vendors told MIT that they believed in the need for a neutral party to keep X from fragmenting in the marketplace.

In June 2010, X played a free show at the North by Northeast Festival ( NXNE ) in Toronto, ON, Canada, and on June 18, 2011 the band headlined the 3rd Annual Johnny Cash Music Festival in Ventura, CA, USA.

On June 10, 1999, 4Front Technologies decided to sponsor X11Amp development and the project was renamed to XMMS-the name being an acronym for X MultiMedia System.

* June 26 – Richard X. Slattery, American actor ( d. 1997 )

* June 15 – Pope Leo X issues the bull Exsurge Domine ( Arise O Lord ), threatening Martin Luther with excommunication if he does not recant his position on indulgences and other Catholic doctrines.

* June 2 – Pope Pius X, ( d. 1914 )

* June 6 – Charles X Gustav succeeds his cousin Christina on the Swedish throne.

* June 5 – King Louis X of France ( b. 1289 )

* Anne Sutton and Livia Visser-Fuchs, "' A Most Benevolent Queen ': Queen Elizabeth Woodville's Reputation, Her Piety, and Her Books ", The Ricardian, X: 129, June 1995.

Pope Leo X sent a letter to James threatening him with ecclesiatical censure for breaking peace treaties on 28 June 1513, and subsequently James was excommunicated by Cardinal Christopher Bainbridge.

* June 26 – At the death of Ptolemy VIII Physcon, Cleopatra III has chosen her younger son Ptolemy X Alexander as co-regent, but the Alexandrians forced her to bring Ptolemy IX from Cyprus, of which he is governor.

Louis X, ( 4 October 1289 – 5 June 1316 ), called the Quarreler, the Headstrong, or the Stubborn (; ) was the King of Navarre ( as Louis I ) from 1305 and King of France from 1314 until his death.

* May – June – Magicicada broods X ( 17-year ) and XIX ( 13-year ) will emerge simultaneously.

Version 2. 0 of Magma was released in June 1996 and subsequent versions of 2. X have been released approximately once per year.

The band's current album, X, was released in June 2010.

Teena also began skipping school and receiving failing grades, and was expelled from Pius X High School in June 1991, three days before high school graduation.

* Giuseppe Sarto ( 1835 – 1914 ), appointed Bishop in 1884 before he became Pope Pius X in 1903.

* 1830 – Charles X of France abdicates the throne in favor of his grandson Henri.

* 1929 – X. J. Kennedy, American poet and author

* 1966 – Derek Sherinian, American keyboard player, composer, and producer ( Planet X, Dream Theater, and Black Country Communion )

* Alfonso X of Castile-( 1252 – 1284 )

* 1960 – Tony MacAlpine, American guitarist, composer, and producer ( Planet X, CAB, Ring of Fire, and Seven the Hardway )

* 1947 – Christian X of Denmark ( b. 1870 )

* 1981 – Kelli Young, English singer ( Liberty X )

: Electrophilic addition of X – Y to an alkene

The redesigned AIM for Mac is a full universal binary Cocoa API application that supports both Tiger and Leopard – Mac OS X 10. 4. 8 ( and above ) or Mac OS X 10. 5. 3 ( and above ).

* 116 – 27 BC: Marcus Terentius Varro's Lingua Latina X ( II, par.

* Legions of veterans from the Gallic Wars – Caesar's favourite legion, X Equestris, and those later known with the names of VIII Augusta, IX Hispana, and XII Fulminata

The Cantigas de Santa Maria (" Canticles of Holy Mary ";, ) are 420 poems with musical notation, written in Galician-Portuguese during the reign of Alfonso X El Sabio ( 1221 – 1284 ) and often attributed to him.

* Studies on the " Cantigas de Santa Maria ": Art, Music, and Poetry: Proceedings of the International Symposium on the " Cantigas de Santa Maria " of Alfonso X, el Sabio ( 1221 – 1284 ) in Commemoration of Its 700th Anniversary Year – 1981.

** Louis X ( 1314 – 1316 )

** Charles X ( 1824 – 1830 )

* Louis X ( 1314 – 1316 )

* Charles X ( 1824 – 1836 )

The Dallas Cowboys Cheerleaders soon gained the spotlight with their revealing outfits and sophisticated dance moves, which debuted in the 1972 – 1973 season, but were first seen widely in Super Bowl X ( 1976 ).

* 2011 – Francis " Frank " X. McDermott, American Republican Party politician ( b. 1924 )

* 915 – Pope John X crowned Berengar I of Italy as Roman Emperor.

* 1521 – Pope Leo X ( b. 1475 )

* 1879 – Queen Alexandrine of Denmark, Queen Consort to Christian X ( d. 1952 )

* 1475 – Pope Leo X ( d. 1521 )