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Binary Number
A binary number is a number expressed in the base-2 numeral system or binary numeral system, a method of mathematical expression which uses only two symbols: typically "0" ( zero) and "1" (one). 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 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 Thomas Harriot, Juan Caramuel y Lobkowitz, and Gottfried Leibniz. However, systems related to binary numbers have appeared earlier in multiple cultures including ancient Egypt, China, and India. Leibniz was speci ... [...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 original 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 number using a combination of ten fundamental numeric symbols, called 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 number A serial number is a unique identifier assigned incrementally or sequentially to an item, to ''uniquely'' identi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Fifth Dynasty Of Egypt
The Fifth Dynasty of ancient Egypt (notated Dynasty V) is often combined with Dynasties III, IV and VI under the group title the Old Kingdom. The Fifth Dynasty pharaohs reigned for approximately 150 years, from the early 25th century BC until the mid 24th century BC. Chronology The Fifth Dynasty of Egypt is a group of nine kings ruling Egypt for approximately 150 years in the 25th and 24th centuries BC. The relative succession of kings is not entirely secured as there are contradictions between historical sources and archaeological evidence regarding the reign of the shadowy Shepseskare. Rulers Known rulers in the Fifth Dynasty are listed below. Manetho assigns 248 years of rule to the Fifth Dynasty; however, the pharaohs of this dynasty more probably ruled for approximately 150 years. This estimate varies by both scholar and source. The Horus names and most names of the queens are taken from Dodson and Hilton. Manetho writes that the Dynasty V kings ruled from Elep ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Least Significant Bit
In computing, bit numbering is the convention used to identify the bit positions in a binary number. Bit significance and indexing In computing, the least significant bit (LSB) is the bit position in a binary integer representing the binary 1s place of the integer. Similarly, the most significant bit (MSB) represents the highest-order place of the binary integer. The LSB is sometimes referred to as the ''low-order bit'' or ''right-most bit'', due to the convention in positional notation of writing less significant digits further to the right. The MSB is similarly referred to as the ''high-order bit'' or ''left-most bit''. In both cases, the LSB and MSB correlate directly to the least significant digit and most significant digit of a decimal integer. Bit indexing correlates to the positional notation of the value in base 2. For this reason, bit index is not affected by how the value is stored on the device, such as the value's byte order. Rather, it is a property of the num ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Shao Yong
Shao Yong (; 1011–1077), courtesy name Yaofu (堯夫), named Shào Kāngjié (邵康節) was a Chinese cosmologist, historian, philosopher, and poet who greatly influenced the development of Neo-Confucianism across China during the Song dynasty. Shao is considered one of the most learned men of his time. Unlike most men of such stature in his society, Shao avoided governmental positions his entire life, but his influence was no less substantial. He wrote an influential treatise on cosmogony, the ''Huangji Jingshi'' (皇極經世, ''Book of supreme world ordering principles''). Origins Shao's ancestors were from Fanyang. He was born in 1011 in an area known as Hengzhang county (衡漳, now Anyang, Henan) to Shao Gu (邵古, 986–1064) and Lady Li (李氏, d. 1032 or 1033). Shao's mother, Li, was an extremely devout practitioner of Buddhism. This link with Buddhism proved to be a major influence on Shao's thought throughout his life. Shao Yong's first teacher was Shao Gu, his ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Song Dynasty
The Song dynasty (; ; 960–1279) was an imperial dynasty of China that began in 960 and lasted until 1279. The dynasty was founded by Emperor Taizu of Song following his usurpation of the throne of the Later Zhou. The Song conquered the rest of the Ten Kingdoms, ending the Five Dynasties and Ten Kingdoms period. The Song often came into conflict with the contemporaneous Liao, Western Xia and Jin dynasties in northern China. After retreating to southern China, the Song was eventually conquered by the Mongol-led Yuan dynasty. The dynasty is divided into two periods: Northern Song and Southern Song. During the Northern Song (; 960–1127), the capital was in the northern city of Bianjing (now Kaifeng) and the dynasty controlled most of what is now Eastern China. The Southern Song (; 1127–1279) refers to the period after the Song lost control of its northern half to the Jurchen-led Jin dynasty in the Jin–Song Wars. At that time, the Song court retreated south o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Zhou Dynasty
The Zhou dynasty ( ; Old Chinese ( B&S): *''tiw'') was a royal dynasty of China that followed the Shang dynasty. Having lasted 789 years, the Zhou dynasty was the longest dynastic regime in Chinese history. The military control of China by the royal house, surnamed Ji, lasted initially from 1046 until 771 BC for a period known as the Western Zhou, and the political sphere of influence it created continued well into the Eastern Zhou period for another 500 years. The establishment date of 1046 BC 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. During the Zhou dynasty, centralized power decreased throughout the Spring and Autumn period until the Warring States period in the last two centuries of the dynasty. In the latter period, the Zhou court had little control over its constituent states that were at war with each other until the Qin state consolidated power ... [...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 changin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Ba Gua
The bagua or pakua (八卦) are a set of eight symbols that originated in China, used in Taoist cosmology to represent the fundamental principles of reality, seen as a range of eight interrelated concepts. Each consists of three lines, each line either "broken" or "unbroken", respectively representing yin or yang. Due to their tripartite structure, they are often referred to as Eight Trigrams in English. The trigrams are related to Taiji philosophy, Taijiquan and the Wuxing, or "five elements". The relationships between the trigrams are represented in two arrangements: the ''Primordial'' (), "Earlier Heaven", or "Fu Xi" bagua () and the ''Manifested'' (), "Later Heaven", or "King Wen" bagua. The trigrams have correspondences in astronomy, astrology, geography, geomancy, anatomy, the family, martial arts, Chinese medicine and elsewhere. The ancient Chinese classic, I Ching (Pinyin: Yi Jing), consists of the 64 pairwise permutations of trigrams, referred to as "hexagrams", ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Yin And Yang
Yin and yang ( and ) is a Chinese philosophical concept that describes opposite but interconnected forces. In Chinese cosmology, the universe creates itself out of a primary chaos of material energy, organized into the cycles of yin and yang and formed into objects and lives. Yin is the receptive and yang the active principle, seen in all forms of change and difference such as the annual cycle (winter and summer), the landscape (north-facing shade and south-facing brightness), sexual coupling (female and male), the formation of both men and women as characters and sociopolitical history (disorder and order). Taiji or Tai chi () is a Chinese cosmological term for the "Supreme Ultimate" state of undifferentiated absolute and infinite potential, the oneness before duality, from which yin and yang originate. It can be compared with the old '' wuji'' (, "without pole"). In the cosmology pertaining to yin and yang, the material energy, which this universe has created itself out ... [...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 sticks 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 ''yin'' ( : dark, feminine, ''etc.'', represented by a broken line) or ''yang'' ( : light, masculine, ''etc.'', a solid line), and either ''old'' (moving or changing, represented by an "X" written on the middle of a ''yin'' line, or a circle written ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Quaternary Numeral System
A quaternary numeral system is 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 __FORCETOC__ A highly composite number is a positive integer with more divisors than any smaller positive integer has. The related concept of largely composite number refers to a positive integer which has at least as many divisors as any smaller ... (the other being 36), 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 uniqu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |