News tagged with number
Google users warned of threat to smartphone wallets
Users of Google smartphone wallets were being warned on Friday that there is a way to crack pass codes intended to thwart thieves from going on illicit shopping sprees.
13 hours ago |
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Numeracy: The educational gift that keeps on giving?
(Medical Xpress) -- Cancer risks. Investment alternatives. Calories. Numbers are everywhere in daily life, and they figure into all sorts of decisions. A new article published in Current Directions in Psychological Science, a journal of the Association for Psychological Science, examin ...
Medicine & Health / Psychology & Psychiatry
22 hours ago |
4.5 / 5 (2) |
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'Touch' TV series uses numbers to connect people
Think about all of the different people that you come in contact with on any given day: family, friends, coworkers and strangers going about their lives. The fateful hijacking of Flight 93 on 9/11 showed how ...
Jan 26, 2012 |
4 / 5 (3) |
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O2 accidentally exposes customers' phone numbers
An untold number of U.K. residents may have unwittingly broadcast their numbers to sites across the Web while browsing the Internet with their cellphones during the past two weeks.
Jan 25, 2012 |
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Hot attraction in bimetals: A cyano-bridged vanadium-niobium bimetal assembly with a Curie temperature of 210 K
Cyano-bridged bimetal assemblies attract attention because of their magnetic properties such as photomagnetization, humidity-induced magnetization, and nonlinear magneto-optical effect, which make them suitable ...
Jan 24, 2012 |
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Neural network learns to identify group sizes without knowledge of numbers
(PhysOrg.com) -- A cognitive sciences research duo out of Università di Padova, in Italy, have succeeded in building an artificial intelligence network that has through repetition, learned to identify relative group ...
Technology / Computer Sciences
Jan 23, 2012 |
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How Internet is changing Ugandan business
Sitting in the glow of his flat-screen computer monitor in a fashionable office, Donald Kasule says that until recently it was almost impossible to imagine making a success of an Internet start-up in Uganda.
Jan 18, 2012 |
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Consumers urged to be vigilant in wake of Zappos cyberattack
(PhysOrg.com) -- As an estimated 24 million Zappos.com customers begin receiving notifications that some of their personal data have been compromised in a massive cyberattack, an Indiana University cybersecurity expert is warning t ...
Jan 18, 2012 |
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Alleged Russian cybercriminal charged in New York court
The Justice Department announced indictments against two Russians Tuesday for allegedly hacking into computers of US financial institutions to steal credit card numbers and stock information before running up bills.
Jan 18, 2012 |
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A baby crystal is born
Lead sulfide (PbS) forms when an equal number of lead and sulfur atoms exchange electrons and bond together in cubic crystals. Now scientists have determined that a structure comprising 32 lead-sulfur pairs is the smallest ...
Jan 17, 2012 |
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US shoe seller says hacker compromised accounts
US online shoe seller Zappos.com was notifying some 24 million customers Monday that a hacker had gained entry to its computer network, but said credit card data was not affected.
Jan 16, 2012 |
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China's number of Web users rises to 513 million
(AP) -- The number of Internet users in China has surged past 500 million as millions of new Web surfers go online using mobile phones and tablet computers, an industry group reported Monday.
Jan 16, 2012 |
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Stratfor back online after cyberhack
(AP) -- Global intelligence analysis firm Stratfor has relaunched its website after hackers brought down its servers and stole thousands of credit card numbers and other personal information belonging to ...
Jan 11, 2012 |
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Internet address expansion set despite ".worries." (Update)
Bidding will begin this week for words and brand names such as ".sport," ".NYC" and ".bank" to join ".com" as online monikers.
Jan 10, 2012 |
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Internet name 'revolution' hits doubts
The body that polices Internet registrations will on Thursday launch a domain name "revolution" in the face of the concerns of global bodies ranging from the United Nations to the US Congress.
Jan 10, 2012 |
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Number
A number is a mathematical object used to count and measure. In mathematics, the definition of number has been extended over the years to include such numbers as zero, negative numbers, rational numbers, irrational numbers, and complex numbers.
Mathematical operations are certain procedures that take one or more numbers as input and produce a number as output. Unary operations take a single input number and produce a single output number. For example, the successor operation adds one to an integer, thus the successor of 4 is 5. Binary operations take two input numbers and produce a single output number. Examples of binary operations include addition, subtraction, multiplication, division, and exponentiation. The study of numerical operations is called arithmetic.
A notational symbol that represents a number is called a numeral. In addition to their use in counting and measuring, numerals are often used for labels (telephone numbers), for ordering (serial numbers), and for codes (e.g., ISBNs).
In common use, the word number can mean the abstract object, the symbol, or the word for the number.
For more information about Number, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
