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Binary Number
A binary number is a number expressed in the Radix, base-2 numeral system or binary numeral system, a method for representing numbers that uses only two symbols for the natural numbers: typically "0" (zero) and "1" (one). A ''binary number'' may also refer to a rational number that has a finite representation in the binary numeral system, that is, the quotient of an integer by a power of two. The base-2 numeral system is a positional notation with a radix of 2. Each digit is referred to as a bit, or binary digit. Because of its straightforward implementation in digital electronic circuitry using logic gates, the binary system is used by almost all modern computer, computers and computer-based devices, as a preferred system of use, over various other human techniques of communication, because of the simplicity of the language and the noise immunity in physical implementation. History The modern binary number system was studied in Europe in the 16th and 17th centuries by Thoma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Number
A number is a mathematical object used to count, measure, and label. The most basic examples are the natural numbers 1, 2, 3, 4, and so forth. Numbers can be represented in language with number words. More universally, individual numbers can be represented by symbols, called ''numerals''; for example, "5" is a numeral that represents the number five. As only a relatively small number of symbols can be memorized, basic numerals are commonly organized in a numeral system, which is an organized way to represent any number. The most common numeral system is the Hindu–Arabic numeral system, which allows for the representation of any Integer, non-negative integer using a combination of ten fundamental numeric symbols, called numerical digit, digits. In addition to their use in counting and measuring, numerals are often used for labels (as with telephone numbers), for ordering (as with serial numbers), and for codes (as with ISBNs). In common usage, a ''numeral'' is not clearly dist ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Horus
Horus (), also known as Heru, Har, Her, or Hor () in Egyptian language, Ancient Egyptian, is one of the most significant ancient Egyptian deities who served many functions, most notably as the god of kingship, healing, protection, the sun, and the sky. He was worshipped from at least the late prehistoric Egypt until the Ptolemaic Kingdom and Egypt (Roman province), Roman Egypt. Different forms of Horus are recorded in history, and these are treated as distinct gods by Egyptology, Egyptologists."The Oxford Guide: Essential Guide to Egyptian Mythology", Edited by Donald B. Redford, Horus: by Edmund S. Meltzer, pp. 164–168, Berkley, 2003, . These various forms may be different manifestations of the same multi-layered deity in which certain attributes or Syncretism, syncretic relationships are emphasized, not necessarily in opposition but complementary to one another, consistent with how the Ancient Egyptians viewed the multiple facets of reality. He was most often depicted as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Zhou Dynasty
The Zhou dynasty ( ) was a royal dynasty of China that existed for 789 years from until 256 BC, the longest span of any dynasty in Chinese history. During the Western Zhou period (771 BC), the royal house, surnamed Ji, had military control over territories centered on the Wei River valley and North China Plain. Even as Zhou suzerainty became increasingly ceremonial over the following Eastern Zhou period (771–256 BC), the political system created by the Zhou royal house survived in some form for several additional centuries. A date of 1046 BC for the Zhou's establishment is supported by the Xia–Shang–Zhou Chronology Project and David Pankenier, but David Nivison and Edward L. Shaughnessy date the establishment to 1045 BC. The latter Eastern Zhou period is itself roughly subdivided into two parts. During the Spring and Autumn period (), power became increasingly decentralized as the authority of the royal house diminished. The Warring States ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Hexagram (I Ching)
The ''I Ching'' book consists of 64 hexagrams. A hexagram in this context is a figure composed of six stacked horizontal lines ( 爻 yáo), where each line is either Yang (an unbroken, or solid line), or Yin (broken, an open line with a gap in the center). The hexagram lines are traditionally counted from the bottom up, so the lowest line is considered line one while the top line is line six. Hexagrams are formed by combining the original eight trigrams in different combinations. Each hexagram is accompanied with a description, often cryptic, akin to parables. Each line in every hexagram is also given a similar description. The Chinese word for a hexagram is 卦 "guà", although that also means trigram. Types Classic and modern ''I Ching'' commentaries mention a number of different hexagram types: * Eight Trigrams * Original Hexagram * Future Hexagram * Contrasting (Reverse) Hexagram (is found by turning a hexagram upside down) * Complementary Hexagram (is found by chang ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Ba Gua
The ''bagua'' ( zh, c=八卦, p=bāguà, l=eight trigrams) is a set of symbols from China intended to illustrate the nature of reality as being composed of mutually opposing forces reinforcing one another. ''Bagua'' is a group of trigrams—composed of three lines, each either "broken" or "unbroken", which represent yin and yang, respectively. Each line having two possible states allows for a total of 23 = 8 trigrams, whose early enumeration and characterization in China has had an effect on the history of Chinese philosophy and Chinese cosmology, cosmology. The trigrams are related to the divination practice as described within the ''I Ching'' and practiced as part of the Chinese theology#Shang–Zhou theology, Shang and Zhou state religion, as well as with the concepts of ''Taiji (philosophy), taiji'' and the Wuxing (Chinese philosophy), five elements within traditional Chinese metaphysics. The trigrams have correspondences in astronomy, divination, meditation, astrology, geo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Yin And Yang
Originating in Chinese philosophy, yin and yang (, ), also yinyang or yin-yang, is the concept of opposite cosmic principles or forces that interact, interconnect, and perpetuate each other. Yin and yang can be thought of as complementary and at the same time opposing forces that interact to form a dynamic system in which the whole is greater than the assembled parts and the parts are as important for the cohesion of the whole. In Chinese cosmology, the universe creates itself out of a primary chaos of primordial qi or material energy, organized into the cycles of yin and yang, force and motion leading to form and matter. "Yin" is retractive, passive and contractive in nature, while "yang" is repelling, active and expansive in principle; this dichotomy in some form, is seen in all things in nature—patterns of change and difference. For example, biological, psychological and seasonal cycles, the historical evolution of landscapes over days, weeks, years to eons. The origin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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I Ching Divination
''I Ching'' divination is a form of cleromancy applied to the ''I Ching''. The text of the ''I Ching'' consists of sixty-four hexagrams: six-line figures of '' yin'' (broken) or '' yang'' (solid) lines, and commentaries on them. There are two main methods of building up the lines of the hexagram, using either 50 yarrow stalks or three coins. Some of the lines may be designated "old" lines, in which case the lines are subsequently changed to create a second hexagram. The text relating to the hexagram(s) and old lines (if any) is studied, and the meanings derived from such study can be interpreted as an oracle. Methods Each hexagram is six lines, written sequentially one above the other; each of the lines represents a state that is either or , and either ''old'' (moving or changing, represented by an "X" written on the middle of a ''yin'' line, or a circle written on the middle of a ''yang'' line) or ''young'' (static, unchanging). The usual methods for consulting the ''I Chin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Quaternary Numeral System
Quaternary is a numeral system with four as its base. It uses the digits 0, 1, 2, and 3 to represent any real number. Conversion from binary is straightforward. Four is the largest number within the subitizing range and one of two numbers that is both a square and a highly composite number (the other being thirty-six), making quaternary a convenient choice for a base at this scale. Despite being twice as large, its radix economy is equal to that of binary. However, it fares no better in the localization of prime numbers (the smallest better base being the primorial base six, senary). Quaternary shares with all fixed-radix numeral systems many properties, such as the ability to represent any real number with a canonical representation (almost unique) and the characteristics of the representations of rational numbers and irrational numbers. See decimal and binary for a discussion of these properties. Relation to other positional number systems Relation to binary and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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I Ching
The ''I Ching'' or ''Yijing'' ( ), usually translated ''Book of Changes'' or ''Classic of Changes'', is an ancient Chinese divination text that is among the oldest of the Chinese classics. The ''I Ching'' was originally a divination manual in the Western Zhou period (1000–750 BC). Over the course of the Warring States period, Warring States and early imperial periods (500–200 BC), it transformed into a Religious cosmology, cosmological text with a series of philosophical commentaries known as the Ten Wings. After becoming part of the Chinese Five Classics in the 2nd century BC, the ''I Ching'' was the basis for divination practice for centuries across the Far East and was the subject of scholarly commentary. Between the 18th and 20th centuries, it took on an influential role in Western understanding of East Asian philosophical thought. As a divination text, the ''I Ching'' is used for a Chinese form of cleromancy known as I Ching divination, ''I Ching'' div ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Rhind Mathematical Papyrus
The Rhind Mathematical Papyrus (RMP; also designated as papyrus British Museum 10057, pBM 10058, and Brooklyn Museum 37.1784Ea-b) is one of the best known examples of ancient Egyptian mathematics. It is one of two well-known mathematical papyri, along with the Moscow Mathematical Papyrus. The Rhind Papyrus is the larger, but younger, of the two. In the papyrus' opening paragraphs Ahmes presents the papyrus as giving "Accurate reckoning for inquiring into things, and the knowledge of all things, mysteries ... all secrets". He continues: This book was copied in regnal year 33, month 4 of Season of the Inundation, Akhet, under the majesty of the King of Upper and Lower Egypt, Awserre, given life, from an ancient copy made in the time of the King of Upper and Lower Egypt Nimaatre. The scribe Ahmose writes this copy. Several books and articles about the Rhind Mathematical Papyrus have been published, and a handful of these stand out. ''The Rhind Papyrus'' was published in 192 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Ancient Egyptian Multiplication
In mathematics, ancient Egyptian multiplication (also known as Egyptian multiplication, Ethiopian multiplication, Russian multiplication, or peasant multiplication), one of two multiplication methods used by scribes, is a systematic method for multiplying two numbers that does not require the multiplication table, only the ability to multiply and divide by 2, and to add. It decomposes one of the multiplicands (preferably the smaller) into a set of numbers of powers of two and then creates a table of doublings of the second multiplicand by every value of the set which is summed up to give result of multiplication. This method may be called mediation and duplation, where mediation means halving one number and duplation means doubling the other number. It is still used in some areas. The second Egyptian multiplication and division technique was known from the hieratic Moscow and Rhind Mathematical Papyri written in the seventeenth century B.C. by the scribe Ahmes. Gunn, Battisco ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |