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0O (other)
0O (zero O) or 0-O may refer to: *0o, 0_o, and 0.o, a kaomoji emoticon that may refer to shocked, disturbed, or confused. *0-O, abbreviation for 0-operand instruction set *0o, or zero object, a mathematics term for a simultaneously initial and terminal object *0O, also ZO, an abbreviation for zero order **Zero-order hold, model of the practical signal reconstruction done by a conventional digital-to-analog converter **Zero order process (chemistry), a chemical reaction in which the rate of change of concentration is independent of the concentrations **Zeroth-order logic, first-order logic without quantifiers **Zero-order process (statistics), a sequence of random variables, each independent of the previous ones **Zeroth-order approximation, an approximation of a function by a constant *0o, a prefix used in some programming languages to denote octal (base 8) integer literals See also *O0 (other) *00 (other) *OO (other) OO or oo may refer to: Science an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kaomoji
An emoticon (, , rarely , ), short for "emotion icon", also known simply as an emote, is a pictorial representation of a facial expression using characters—usually punctuation marks, numbers, and letters—to express a person's feelings, mood or reaction, or as a time-saving method. The first ASCII emoticons are generally credited to computer scientist Scott Fahlman, who proposed what came to be known as "smileys":-) and :-(in a message on the bulletin board system (BBS) of Carnegie Mellon University in 1982. In Western countries, emoticons are usually written at a right angle to the direction of the text. Users from Japan popularized a kind of emoticon called kaomoji, utilizing the larger character sets required for Japanese, that can be understood without tilting one's head to the left. This style arose on ASCII NET of Japan in 1986. As SMS mobile text messaging and the Internet became widespread in the late 1990s, emoticons became increasingly popular and were common ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Instruction Set
In computer science, an instruction set architecture (ISA), also called computer architecture, is an abstract model of a computer. A device that executes instructions described by that ISA, such as a central processing unit (CPU), is called an ''implementation''. In general, an ISA defines the supported instructions, data types, registers, the hardware support for managing main memory, fundamental features (such as the memory consistency, addressing modes, virtual memory), and the input/output model of a family of implementations of the ISA. An ISA specifies the behavior of machine code running on implementations of that ISA in a fashion that does not depend on the characteristics of that implementation, providing binary compatibility between implementations. This enables multiple implementations of an ISA that differ in characteristics such as performance, physical size, and monetary cost (among other things), but that are capable of running the same machine code, so that ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Initial And Terminal Object
In category theory, a branch of mathematics, an initial object of a category is an object in such that for every object in , there exists precisely one morphism . The dual notion is that of a terminal object (also called terminal element): is terminal if for every object in there exists exactly one morphism . Initial objects are also called coterminal or universal, and terminal objects are also called final. If an object is both initial and terminal, it is called a zero object or null object. A pointed category is one with a zero object. A strict initial object is one for which every morphism into is an isomorphism. Examples * The empty set is the unique initial object in Set, the category of sets. Every one-element set ( singleton) is a terminal object in this category; there are no zero objects. Similarly, the empty space is the unique initial object in Top, the category of topological spaces and every one-point space is a terminal object in this category. * In ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zero Order (other)
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Zero order reaction *Zero-order process (statistics), a sequence of random variables, each independent of the previous ones *Zero order process (chemistry), a chemical reaction in which the rate of change of concentration is independent of the concentrations *Zeroth-order approximation, an approximation of a function by a constant *Zeroth-order logic, a form of logic without quantifiers See also * Zero (other) * 0O (other) 0O (zero O) or 0-O may refer to: *0o, 0_o, and 0.o, a kaomoji emoticon that may refer to shocked, disturbed, or confused. *0-O, abbreviation for 0-operand instruction set *0o, or zero object, a mathematics term for a simultaneously initial and term ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zero-order Hold
The zero-order hold (ZOH) is a mathematical model of the practical signal reconstruction done by a conventional digital-to-analog converter (DAC). That is, it describes the effect of converting a discrete-time signal to a continuous-time signal by holding each sample value for one sample interval. It has several applications in electrical communication. Time-domain model A zero-order hold reconstructs the following continuous-time waveform from a sample sequence ''x'' 'n'' assuming one sample per time interval ''T'': x_(t)\,= \sum_^ x cdot \mathrm \left(\frac \right) where \mathrm(\cdot) is the rectangular function. The function \mathrm \left(\frac \right) is depicted in Figure 1, and x_(t) is the piecewise-constant signal depicted in Figure 2. Frequency-domain model The equation above for the output of the ZOH can also be modeled as the output of a linear time-invariant filter with impulse response equal to a rect function, and with input being a sequence of dirac im ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zero Order Process (chemistry)
In chemistry, the rate law or rate equation for a reaction is an equation that links the initial or forward reaction rate with the concentrations or pressures of the reactants and constant parameters (normally rate coefficients and partial reaction orders). For many reactions, the initial rate is given by a power law such as :v_0\; =\; k mathrmx mathrmy where and express the concentration of the species and usually in moles per liter (molarity, ). The exponents and are the partial ''orders of reaction'' for and and the ''overall'' reaction order is the sum of the exponents. These are often positive integers, but they may also be zero, fractional, or negative. The constant is the reaction rate constant or ''rate coefficient'' of the reaction. Its value may depend on conditions such as temperature, ionic strength, surface area of an adsorbent, or light irradiation. If the reaction goes to completion, the rate equation for the reaction rate v\; =\; k cex cey applies throughou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zeroth-order Logic
Zeroth-order logic is first-order logic without variables or quantifiers. Some authors use the phrase "zeroth-order logic" as a synonym for the propositional calculus,. but an alternative definition extends propositional logic by adding constants, operations, and relations on non-Boolean values.. Every zeroth-order language in this broader sense is complete and compact Compact as used in politics may refer broadly to a pact or treaty; in more specific cases it may refer to: * Interstate compact * Blood compact, an ancient ritual of the Philippines * Compact government, a type of colonial rule utilized in British .... References {{Portal bar, Philosophy Propositional calculus Systems of formal logic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zero-order Process (statistics)
In probability theory and statistics, a zero-order process is a stochastic process In probability theory and related fields, a stochastic () or random process is a mathematical object usually defined as a family of random variables. Stochastic processes are widely used as mathematical models of systems and phenomena that appea ... in which each observation is independent of all previous observations. For example, a zero-order process in marketing would be one in which the brands purchased next do not depend on the brands purchased before, implying a fixed probability of purchase since it is zero order in regards to probability. References * Stochastic processes {{stat-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zeroth-order Approximation
In science, engineering, and other quantitative disciplines, order of approximation refers to formal or informal expressions for how accurate an approximation is. Usage in science and engineering In formal expressions, the ordinal number used before the word order refers to the highest power in the series expansion used in the approximation. The expressions: a ''zeroth-order approximation'', a ''first-order approximation'', a ''second-order approximation'', and so forth are used as fixed phrases. The expression a ''zero-order approximation'' is also common. Cardinal numerals are occasionally used in expressions like an ''order-zero approximation'', an ''order-one approximation'', etc. The omission of the word ''order'' leads to phrases that have less formal meaning. Phrases like first approximation or to a first approximation may refer to ''a roughly approximate value of a quantity''. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Octal
The octal numeral system, or oct for short, is the radix, base-8 number system, and uses the Numerical digit, digits 0 to 7. This is to say that 10octal represents eight and 100octal represents sixty-four. However, English, like most languages, uses a Base 10, base-10 number system, hence a true octal system might use different vocabulary. In the decimal system, each place is a power of ten. For example: : \mathbf_ = \mathbf \times 10^1 + \mathbf \times 10^0 In the octal system, each place is a power of eight. For example: : \mathbf_8 = \mathbf \times 8^2 + \mathbf \times 8^1 + \mathbf \times 8^0 By performing the calculation above in the familiar decimal system, we see why 112 in octal is equal to 64+8+2=74 in decimal. Octal numerals can be easily converted from Binary numeral system, binary representations (similar to a quaternary numeral system) by grouping consecutive binary digits into groups of three (starting from the right, for integers). For example, the binary repr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
O0 (other)
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O0 may refer to: * N47D20-O0, model of the BMW 5 Series * N53B30-O0, model of the BMW N53 with improved maximum power to 268ㅡ See also * kaomoji * OO (other) * 00 (other) * 0O (other) * Ozero Ozero (russian: О́зеро, lit. ''lake'') (full name: дачный потребительский кооператив «Озеро», Dacha consumer cooperative "Ozero") is a dacha cooperative associated with Vladimir Putin's inner circl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
00 (other)
00, a double zero, may refer to: * '' '00'', album by the alternative rock band Judybats, released in 2000 *The year 1900 * The year 2000 *The year 2100 * 00 Agent, an agent with a license to kill in the ''James Bond'' media * 00 gauge, a standard of model railways * Size 00, a women's clothing size in the US catalog sizes system * Symphony No. 00 (Bruckner), an alternate name for Anton Bruckner's Study Symphony orchestra in F minor * ''Mobile Suit Gundam 00'', an anime series * 00, an abbreviation used on signs to indicate a public toilet (particularly in Germany and Eastern Europe) * 00, a common international call prefix * 00, a wire diameter defined by the American wire gauge standard * 00, a fine grade of steel wool * 00, a field on the wheel of some roulette game tables * 00, an Italian type number for Flour * A shotgun ammunition size for buckshot, about equal to 8.452 mm (0.33 inches) in diameter See also * Zero Zero (other) * Double O (disambigu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
