| 单词 | number system |
| 例句 | The regularity of their number system also means that Asian children can perform basic functions, such as addition, far more easily. Outliers 2008-11-18T00:00:00Z Though the Indian number system was useful for everyday tasks like addition and multiplication, the true impact of Indian numbers was considerably deeper. Zero: The Biography of a Dangerous Idea 2000-02-07T00:00:00Z A number line without zero could no more exist than a number system without two. Zero: The Biography of a Dangerous Idea 2000-02-07T00:00:00Z From this, linguists conclude that ten was the basic unit in the Germanic protolanguages that English came from, and thus those people used a base-10 number system. Zero: The Biography of a Dangerous Idea 2000-02-07T00:00:00Z Zero times anything must be zero; it’s a property of our number system. Zero: The Biography of a Dangerous Idea 2000-02-07T00:00:00Z In fact, the Mayans had a number system—and a calendar—that made more sense than ours does. Zero: The Biography of a Dangerous Idea 2000-02-07T00:00:00Z When early civilizations started pressing reeds to clay tablets, carving figures in stone, and daubing ink on parchment and on papyrus, number systems had already been well-established. Zero: The Biography of a Dangerous Idea 2000-02-07T00:00:00Z Thanks to the very nature of numbers—they can be added together to create new ones—the number system didn’t stop at three. Zero: The Biography of a Dangerous Idea 2000-02-07T00:00:00Z An important difference between the new Indian number system and the Babylonian style was that Indian numbers were base-10 instead of base-60. Zero: The Biography of a Dangerous Idea 2000-02-07T00:00:00Z Yet it was not the Greek number system that prevented zero’s acceptance—nor was it lack of knowledge. Zero: The Biography of a Dangerous Idea 2000-02-07T00:00:00Z Though the Greek number system was more sophisticated than the Egyptian system, it was not the most advanced way of writing numbers in the ancient world. Zero: The Biography of a Dangerous Idea 2000-02-07T00:00:00Z The number system in English is highly irregular. Outliers 2008-11-18T00:00:00Z For astronomical purposes the Greeks adopted a sexagesimal number system and even divided hours into 60 minutes, and minutes into 60 seconds. Zero: The Biography of a Dangerous Idea 2000-02-07T00:00:00Z This may mean that the people who lived in what is now France used a base-20 or vigesimal number system. Zero: The Biography of a Dangerous Idea 2000-02-07T00:00:00Z If Gog put his tallies in groups of four, and counted in groups of four and 16, his number system would have worked just as well, as would groups of six and 36. Zero: The Biography of a Dangerous Idea 2000-02-07T00:00:00Z Thanks to their place- number system, they could add and subtract large numbers in roughly the same way we do today. Zero: The Biography of a Dangerous Idea 2000-02-07T00:00:00Z But the differences between the number systems in the East and the West suggest something very different—that being good at math may also be rooted in a group’s culture. Outliers 2008-11-18T00:00:00Z Transcribing the oral number system into written form was a simple task: people just needed to figure out a coding method whereby scribes could set the numbers down in a more permanent form. Zero: The Biography of a Dangerous Idea 2000-02-07T00:00:00Z Most customers fall back on a number system, one to six. Carla Hall’s Southern Kitchen Likes It Hot, but Not Hellish 2016-10-04T04:00:00Z But for readers who know something about the Auschwitz number system, especially readers who were actually there, the seemingly pointless error will give them pause. ‘The Tattooist of Auschwitz’ and the History in Historical Fiction 2018-11-08T05:00:00Z This suggests two distinct ‘number systems’ in the brain. Your Brain Finds It Easy to Size Up Four Objects But Not Five—Here’s Why 2023-10-11T04:00:00Z These advances, however, could not have occurred without the development of the decimal number system in classical India and the innovation of fractions in the Arabic numeral systems of North Africa by the tenth century. World History: from 1400 2022-12-14T00:00:00Z The boxing was another challenge, full of complex choreography and a number system for where the hits were going to go. Khris Davis took the hits to become ‘Big George Foreman’ 2023-04-28T04:00:00Z In the remote Arctic almost 30 years ago, a group of Inuit middle school students and their teacher invented the Western Hemisphere’s first new number system in more than a century. A Number System Invented by Inuit Schoolchildren Will Make Its Silicon Valley Debut 2023-04-10T04:00:00Z Do you think the Social Security number system will go away or change at some point in the future? What I learned from my identity theft nightmare: A journalist's Reddit AMA 2022-12-19T05:00:00Z But the selection process is subjective, the complaint alleges, requiring officers to come before a panel of superior officers who rank them by a number system. Officers sue Maryland State Police, alleging racial discrimination 2022-10-27T04:00:00Z It gets its name from the binary number system where all numbers are reduced to either 1's or 0's, which is the basis for computer technology and CD music recordings. Introductory Business Statistics 2017-11-29T00:00:00Z However, it was not until about the fifth century A.D. in India that zero was added to the number system and used as a numeral in calculations. College Algebra with Corequisite Support 2020-09-23T00:00:00Z “Around the same time, he also developed a number system,” says Roy Boney, language program manager for the Cherokee Nation. A Number System Invented by Inuit Schoolchildren Will Make Its Silicon Valley Debut 2023-04-10T04:00:00Z Since our number system is base ten we can use powers of ten to rewrite very large or very small numbers to make them easier to work with. Intermediate Algebra 2020-05-06T00:00:00Z Our number system is based on powers of 10. Elementary Algebra 2020-04-22T00:00:00Z In this section, we will explore this number system and how to work within it. Precalculus 2021-12-01T00:00:00Z However, it was not until about the fifth century CE in India that zero was added to the number system and used as a numeral in calculations. Algebra and Trigonometry 2015-02-13T00:00:00Z Though people speak lovingly and quietly of the number system, it had its flaws. Is this ‘Thunderdome’ or the line to get into the Depp-Heard trial? 2022-05-26T04:00:00Z The diagram helps us visualize the complex number system. Intermediate Algebra 2020-05-06T00:00:00Z Our number system is called a place value system, because the value of a digit depends on its position in a number. Elementary Algebra 2020-04-22T00:00:00Z Solve the following equations over the complex number system. Precalculus 2021-12-01T00:00:00Z As we will soon see, a polynomial of degree in the complex number system will have zeros. Algebra and Trigonometry 2015-02-13T00:00:00Z Cognitive scientists, anthropologists and psychologists are looking at contemporary cultures to understand differences among existing number systems—defined as the symbols that a society uses for counting and manipulating numbers. How Did Neanderthals and Other Ancient Humans Learn to Count? 2021-12-23T05:00:00Z The complex number system includes the real numbers and the imaginary numbers. Intermediate Algebra 2020-05-06T00:00:00Z She described witnessing male workers using “the number system” to rank the attractiveness of female colleagues, she said. A Tesla factory worker alleges sexual harassment is rampant in a rare lawsuit. Now other women are stepping forward. 2021-11-19T05:00:00Z This plateau had 10 smaller platforms flanking either side for a total of 20—the basis for many Mesoamerican cultures’ number system. Nearly 500 Mesoamerican monuments revealed by laser mapping—many for the first time 2021-10-25T04:00:00Z The opposites of the counting numbers expanded the number system even further. Algebra and Trigonometry 2015-02-13T00:00:00Z These studies have spurred researchers to formulate some of the first detailed hypotheses for the prehistoric development of number systems. How Did Neanderthals and Other Ancient Humans Learn to Count? 2021-12-23T05:00:00Z Over the next millennium, algebra evolved from the study of the nature of solutions to polynomial equations to the study of abstract number systems. Infinity Category Theory Offers a Bird’s-Eye View of Mathematics 2021-09-14T04:00:00Z Binary is a base-2 number system invented by Gottfried Leibniz that is made up of only two numbers: 0 and 1. Arsenal v Wolves: Premier League – live! 2020-11-29T05:00:00Z De Blasio said he was sympathetic to those complaints, but added: “Looking at the state’s own number system, we’re talking a week or two before we’re in that orange zone status.” NYC mayor suggests indoor dining will likely shut down soon 2020-11-19T05:00:00Z Because of the evolution of the number system, we can now perform complex calculations using these and other categories of real numbers. Algebra and Trigonometry 2015-02-13T00:00:00Z In the light of these discoveries, D’Errico has developed a scenario to explain how number systems might have arisen through the very act of producing such artefacts. How Did Neanderthals and Other Ancient Humans Learn to Count? 2021-12-23T05:00:00Z Work on the three-digit number system for officer helmets is underway and the PPB said the project will be finished by Nov. 15. Portland police to wear helmets with 3-digit identification 2020-10-17T04:00:00Z This number system is the basis for all binary code, which is used to write data such as the computer processor instructions used every day. Arsenal v Wolves: Premier League – live! 2020-11-29T05:00:00Z This year the Jackson Police Department debuted a first-come, first-out number system, encouraging participants to congregate at the Teton County fairgrounds. Despite coronavirus, antler hunters descend on Jackson Hole 2020-05-06T04:00:00Z The solution is not a real number, and in the real number system this solution is rejected as an extraneous solution. Algebra and Trigonometry 2015-02-13T00:00:00Z Overmann and other researchers stress that there’s nothing intellectually lacking about societies that use relatively simple number systems. How Did Neanderthals and Other Ancient Humans Learn to Count? 2021-12-23T05:00:00Z The ability to rapidly estimate the number of sheep in a flock or ripened fruits on a tree is known as the “approximate number system.” Dog brains have a knack for numbers, much like ours 2019-12-17T05:00:00Z He writes, “the main theme of this essay is that anything that isn’t the real number system must be different from the real number system in many ways.” In Pursuit of Completeness 2019-08-03T04:00:00Z A 1957 state law allows counties to establish a rural naming or number system in towns to help emergency responders find locations. Supreme Court says county can order town to rename roads 2019-05-16T04:00:00Z Unlike an open public network such as a phone number system, however, these are privately owned; controlled by big technology companies. Time using landlines 'halves in five years' 2019-01-04T05:00:00Z But she wondered whether such societies might provide clues about the social pressures that drive the development of more elaborate number systems. How Did Neanderthals and Other Ancient Humans Learn to Count? 2021-12-23T05:00:00Z The p-adics are an alternative number system, sometimes more useful than the real numbers for tackling problems in algebraic geometry and number theory. The Numbers Behind a Fields Medalist's Math 2018-09-03T04:00:00Z Most of Scholze’s work has connections to ‘p-adic fields’, exotic extensions of the ordinary number system that are useful tools for studying prime numbers. Number-Theory Prodigy Among Winners of Most Coveted Prize in Mathematics 2018-08-01T04:00:00Z Akshay Venkatesh, who is 36, works on classical problems in number theory, including number systems that consist of fractions of whole numbers and roots such as √2. Number-theory prodigy among winners of most coveted prize in mathematics 2018-07-31T04:00:00Z The decision was based on a complex number system Idaho and other states use to classify prisoners as minimum-, medium- or maximum-security risks. Prison death highlights challenges of cellmate assignments 2018-03-15T04:00:00Z The evidence suggested to Overmann that societies might need a variety of material possessions if they are to develop such number systems. How Did Neanderthals and Other Ancient Humans Learn to Count? 2021-12-23T05:00:00Z The earliest formal number systems, complete with those all-important place values, date back only about 3,500 years, to ancient Mesopotamia, but quantitative record keeping is much older. Many Animals Can Count, Some Better Than You 2018-02-05T05:00:00Z The number system we use today is ultimately derived from the ancient Hindu and Arabic mathematics found in the Bakhshali manuscript. History: Five millennia of Indian science : Nature : Nature Research 2017-10-17T04:00:00Z Most of Scholze’s work has connections to ‘p-adic fields’, exotic extensions of the ordinary number system that are useful tools for studying prime numbers. Number-theory prodigy among winners of most coveted prize in mathematics 2018-07-31T04:00:00Z And all that starting from a circle! Not bad for a symbol that literally represents the idea of nothingness in our number system. A Few of My Favorite Spaces: The 1-Dimensional Sphere 2017-10-07T04:00:00Z In societies with complex number systems, there were clues to how those systems developed. How Did Neanderthals and Other Ancient Humans Learn to Count? 2021-12-23T05:00:00Z The Babylonian number system was a positional, or place value, system like ours. The Joy of Sexagesimal Floating-Point Arithmetic 2017-09-16T04:00:00Z In the fragile document, zero does not yet feature as a number in its own right, but as a placeholder in a number system, just as the “0” in “101” indicates no tens. Much ado about nothing: ancient Indian text contains earliest zero symbol 2017-09-13T04:00:00Z The complex process that creates the structure of the real number system should be taught first. Fending Off Math Anxiety 2017-04-24T04:00:00Z Wallman, like other statisticians the Guardian spoke to, believes that a number system which consists of accurate, publicly available government data is currently under threat. Statisticians fear Trump White House will manipulate figures to fit narrative 2017-01-30T05:00:00Z This suggested to her that many number systems began with a finger-counting stage. How Did Neanderthals and Other Ancient Humans Learn to Count? 2021-12-23T05:00:00Z But the Babylonian number system did not represent fractions in terms of numerators and denominators the way we do. The Joy of Sexagesimal Floating-Point Arithmetic 2017-09-16T04:00:00Z Students are randomly chosen by the drug testing company, Psychemedics, through a number system. Kansas school drug testing policy changed climate, culture 2016-12-16T05:00:00Z The extent to which the race of models is allegedly scrutinised at Perry Ellis extended to executives discussing their body colour based on a coded number system, according to the lawsuit. Fashion label Perry Ellis sued over alleged racist and homophobic policy 2015-10-21T04:00:00Z Under Heise’s bill, a multifaceted parole guideline number system would be instituted. A roundup of recent Michigan newspaper editorials 2015-08-03T04:00:00Z Overmann thinks MET implies that there is another way in which material possessions are necessary for the elaboration of number systems. How Did Neanderthals and Other Ancient Humans Learn to Count? 2021-12-23T05:00:00Z “The number system is easier to work with,” said Mary McDonald, a seventh-grader who takes an extra university math class once a week. An American School Immerses Itself in All Things Chinese 2014-10-26T04:00:00Z There are ten digits in our number system, so any combination of cycles will always be divisible by ten. The secret history of numbers: How math shapes our lives in amazing, unpredictable ways 2014-06-21T04:00:00Z The finger rule works for decimal thinkers with ten fingers because 9 is one less than the base of our number system. How the Simpsons (And You) Can Multiply by Seven Using Your Fingers 2013-11-13T15:45:09.870Z A second ancient number system allows humans and many other animals to instantly and precisely recognize small quantities, up to four. Dyscalculia: Number games 2013-01-09T18:21:38.680Z That should allow them to test Overmann’s hypothesis that body parts and artefacts might have helped societies to develop number systems that ultimately count into the thousands and higher. How Did Neanderthals and Other Ancient Humans Learn to Count? 2021-12-23T05:00:00Z It doesn’t exactly look like the kind of anniversary we usually celebrate, with our decimal normative number system that overvalues ending zeroes and fives, but 167 is a pretty neat number. Why 167 Is a Happy Number Besides Being Scientific American`s Age 2012-08-27T17:15:00.343Z Twelfth-grade students were assessed on six topics: number systems, sets and relations, algebra, geometry, elementary functions and calculus, and probability and statistics. Why U.S. can’t get back to head of the class (because it was never there) 2012-07-02T09:00:00Z On the other hand, by the application of formal rules of formation, the number system has had one extension after another beyond the territory of its original validity. International Congress of Arts and Science, Volume I Philosophy and Metaphysics 2011-12-12T03:00:31.160Z Language, he argues, empowers humans to integrate the two number systems — giving them the ability to intuitively distinguish, say, 11,437 from 11,436. Dyscalculia: Number games 2013-01-09T18:21:38.680Z Overmann acknowledges that her hypothesis is silent on one issue: when in prehistory human societies began developing number systems. How Did Neanderthals and Other Ancient Humans Learn to Count? 2021-12-23T05:00:00Z "I must admit that I did almost everything wrong today," said Cuche, who criticized the start number system at super-G races. Reichelt wins WCup super-G, Miller 3rd in Austria 2011-02-05T13:45:10Z You are confusing a number system with a notation. The Fiver 2010-08-06T15:45:00Z Kan said the government would also consider a taxpayer identification number system to raise the transparency and efficiency of tax collection. 2010-02-14T01:56:00Z He thought that he was thus giving his pupil an ever firmer grasp upon the principle of the structure of our number system, in which all higher numbers are constituted of tens and digits. Clever Hans (The horse of Mr. Von Osten): A contribution to experimental animal and human psychology He induced the nations along the Indus to acknowledge the Persian supremacy, and such number systems as there were in these lands would naturally have been known to a man of his attainments. The Hindu-Arabic Numerals Thus we may select the number aspect of things for consideration and treatment, and so build up and establish within the mind of the child a number system. The Children: Some Educational Problems The collections of numeral systems illustrating the use of the binary, the quinary, and other number systems, are, taken together, believed to be the most extensive now existing in any language. The Number Concept Its Origin and Development Michigan reporter covering cases reported in North western reporter, second series; West key number system. U.S. Copyright Renewals, 1977 January - June New York supplement, second series; West key number system. U.S. Copyright Renewals, 1975 January - June California reporter covering cases reported in Pacific reporter, second series; key number system. U.S. Copyright Renewals, 1974 January - June The pupil will have but a hazy idea of the business relation, and will run the risk of imperfectly organising the pure number system. The Children: Some Educational Problems As the entire number system of these tribes appears to be limited to three, this variation is no cause for surprise. The Number Concept Its Origin and Development Kentucky decisions reported in South western reporter, second series; West key number system. U.S. Copyright Renewals, 1977 January - June New York supplement, second series; West key number system. U.S. Copyright Renewals, 1975 January - June South western reporter, second series; key number system. U.S. Copyright Renewals, 1974 January - June The more effectively the language and number systems are organised and established the more efficiently will they function in the performance of future action. The Children: Some Educational Problems With respect to the limits to which the number systems of the various uncivilized races of the earth extend, recent anthropological research has developed many interesting facts. The Number Concept Its Origin and Development Texas decisions reported in South western reporter, second series; West key number system. U.S. Copyright Renewals, 1977 January - June Colorado digest; consolidated edition, West key number system. U.S. Copyright Renewals, 1975 January - June New York supplement, second series; key number system. U.S. Copyright Renewals, 1974 January - June E.g., the number system may be used in the furtherance of the measuring interest, the weighing interest, and so on. The Children: Some Educational Problems In all other known instances we find actual number systems, or what may for the sake of uniformity be dignified by that name. The Number Concept Its Origin and Development Missouri decisions reported in South western reporter, second series; West key number system. U.S. Copyright Renewals, 1977 January - June Virginia and West Virginia digest; West key number system. U.S. Copyright Renewals, 1975 January - June South eastern reporter, second series; key number system. U.S. Copyright Renewals, 1974 January - June E.g., at the earlier stage, by the breaking up and reconstructing of concrete groups of things, the child can be initiated into the meaning of a number system. The Children: Some Educational Problems In many cases, however, the numerals existing are so few, and the ability to count is so limited, that the term number system is really an entire misnomer. The Number Concept Its Origin and Development North western reporter, second series; West key number system. U.S. Copyright Renewals, 1977 January - June Binary ——— The base 2 number system in which only the digits 1 and 0 are used is called the binary system. The Online World "I think the last paper he wrote before his senior year in high school was an essay on the history of the number system in the west for a fourth-grade teacher." Free as in Freedom: Richard Stallman's Crusade for Free Software We still have ten fingers-a structural reality of the human body projected into the decimal system-but the dominant number system today is probably binary. The Civilization of Illiteracy The entire number system may consist of but two words, one and many; or of three words, one, two, many. The Number Concept Its Origin and Development It certainly is not at all rare; and in Australia its influence on spoken number systems is most apparent. The Number Concept Its Origin and Development Any number system which passes the limit 10 is reasonably sure to have either a quinary, a decimal, or a vigesimal structure. The Number Concept Its Origin and Development The following examples of Australian and Tasmanian number systems show how scanty was the numerical ability possessed by these tribes, and illustrate fully their tendency to count by twos or pairs. The Number Concept Its Origin and Development So did the lever, and probably alphabetic writing, and the number system. The Civilization of Illiteracy Scores of the native dialects of Australia and South America have been found containing number systems but little more extensive than those alluded to above. The Number Concept Its Origin and Development An occasional ternary trace is also found in number systems otherwise decimal or quinary vigesimal; as the dlkunoutl, second 3, of the Haida Indians of British Columbia. The Number Concept Its Origin and Development The quaternary element thus introduced has modified the entire structure of the Hawaiian number system. The Number Concept Its Origin and Development There is probably no recorded instance of a number system formed on 6, 7, 8, or 9 as a base. The Number Concept Its Origin and Development The physical presence of stones gave way to easier methods of calculation: the abacus, as well as to marks recorded on bone, shell, leather, and paper, to a number system, and to symbols for numbers. The Civilization of Illiteracy Again, we find 1000 as the limit; or perhaps 10,000; and sometimes the savage carries his number system on into the hundreds of thousands or millions. The Number Concept Its Origin and Development Few number systems contain as many as three numerals which are associated with 6 as their base. The Number Concept Its Origin and Development Two possible number systems that have, for purely theoretical reasons, attracted much attention, are the octonary and the duodecimal systems. The Number Concept Its Origin and Development A pure quinary or vigesimal number system is exceedingly rare; but quinary scales certainly do exist in which, as far as we possess the numerals, no trace of any other influence appears. The Number Concept Its Origin and Development In such cases the entire number system is scanty, and the creeping hesitancy with which progress is made is visible in the forms which the numerals are made to take. The Number Concept Its Origin and Development Such examples are, I believe, entirely unique among primitive number systems. The Number Concept Its Origin and Development Europe yields one other example of vigesimal counting, in the number system of the Basques. The Number Concept Its Origin and Development Among the almost countless dialects of Africa we find a comparatively small number of vigesimal number systems. The Number Concept Its Origin and Development This completes the scanty list of African vigesimal number systems that a patient and somewhat extended search has yielded. The Number Concept Its Origin and Development This scale is an excellent example of the cumbersome methods used by uncivilized races in extending their number systems beyond the ordinary needs of daily life. The Number Concept Its Origin and Development Taken altogether, the Japanese number system is the most remarkable I have ever examined, in the extent and variety of the higher numerals with well-defined descriptive names. The Number Concept Its Origin and Development Humboldt, in commenting on the number systems of the various peoples he had visited during his travels, remarked that no race had ever used exclusively that best of bases, 12. The Number Concept Its Origin and Development It is a fact, as will be fully illustrated in the following pages, that quinary number systems, when extended, usually merge into either the decimal or the vigesimal. The Number Concept Its Origin and Development Thus the inevitable tendency of any number system of quinary origin is toward the establishment of another and larger base, and the formation of a number system in which both are used. The Number Concept Its Origin and Development Hence these and similar number systems, though commonly alluded to as vigesimal, are really mixed scales, with 20 as their primary base. The Number Concept Its Origin and Development The savage has, with entire unconsciousness, made all his subsequent progress dependent on the number 10, or, in other words, he has established 10 as the base of his number system. The Number Concept Its Origin and Development The Eskimo languages are characteristically quinary-vigesimal in their number systems, but few of them present such perfect examples of that method of counting as do the two just mentioned. The Number Concept Its Origin and Development Any other origin is difficult to reconcile with observed facts, and still more difficult to reconcile with any rational theory of number system development. The Number Concept Its Origin and Development In any collection of the principal vigesimal number systems of the world, one would naturally begin with those possessed by the Celtic races of Europe. The Number Concept Its Origin and Development Germanic number systems are, as a rule, pure decimal systems; and the Danish exception is quite remarkable. The Number Concept Its Origin and Development Binary number systems, which are given in full on another page, are found in South America. The Number Concept Its Origin and Development In Albania there exists one single fragment of vigesimal numeration, which is probably an accidental compound rather than the remnant of a former vigesimal number system. The Number Concept Its Origin and Development I know of no other number system that presents the same peculiarity, and cannot give any hypothesis which will satisfactorily account for its presence here. The Number Concept Its Origin and Development The following will suffice to illustrate the number systems of these dialects, which, as far as the material at hand shows, are different from each other only in minor particulars: Mundari.35510. gelea. The Number Concept Its Origin and Development The fact that a number system is partly decimal and partly vigesimal is found to be of such frequent occurrence that this point in the Tlingit scale need excite no special wonder. The Number Concept Its Origin and Development |
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