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Rate Of Change (other)
Rate of change may refer to: * Rate of change (mathematics), either average rate of change or instantaneous rate of change ** Instantaneous rate of change, rate of change at a given instant in time * Rate of change (technical analysis), a simple technical indicator in finance See also * Rate of climb or rate of altitude change in aeronautics * Rate (other) Rate or rates may refer to: Finance * Rates (tax), a type of taxation system in the United Kingdom used to fund local government * Exchange rate, rate at which one currency will be exchanged for another Mathematics and science * Rate (mathema ... * Change (other) * Frequency (other) * Gradient (other) {{disambiguation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rate Of Change (mathematics)
In mathematics, a rate is the ratio between two related quantities in different units. If the denominator of the ratio is expressed as a single unit of one of these quantities, and if it is assumed that this quantity can be changed systematically (i.e., is an independent variable), then the numerator of the ratio expresses the corresponding ''rate of change'' in the other (dependent) variable. One common type of rate is "per unit of time", such as speed, heart rate and flux. Ratios that have a non-time denominator include exchange rates, literacy rates, and electric field (in volts per meter). In describing the units of a rate, the word "per" is used to separate the units of the two measurements used to calculate the rate (for example a heart rate is expressed "beats per minute"). A rate defined using two numbers of the same units (such as tax rates) or counts (such as literacy rate) will result in a dimensionless quantity, which can be expressed as a percentage (for example, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Instantaneous Rate Of Change
In physics and the philosophy of science, instant refers to an infinitesimal interval in time, whose passage is instantaneous. In ordinary speech, an instant has been defined as "a point or very short space of time," a notion deriving from its etymological source, the Latin verb ''instare'', from ''in-'' + ''stare'' ('to stand'), meaning 'to stand upon or near.' The continuous nature of time and its infinite divisibility was addressed by Aristotle in his ''Physics'', where he wrote on Zeno's paradoxes. The philosopher and mathematician Bertrand Russell was still seeking to define the exact nature of an instant thousands of years later. , the smallest time interval certify in regulated measurements is on the order of 397 zeptoseconds (397 × 10−21 seconds). See also * Infinitesimal * Present The present (or here'' and ''now) is the time that is associated with the events perceived directly and in the first time, not as a recollection (perceived more than once) or a specu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rate Of Change (technical Analysis)
In financial technical analysis, momentum (MTM) and rate of change (ROC) are simple indicators showing the difference between today's closing price and the close N days ago. Momentum is the absolute difference in stock, commodity: : \mathit = \mathit_\mathit - \mathit_ Rate of change scales by the old close, so as to represent the increase as a fraction, : \mathit = ''"Momentum"'' in general refers to prices continuing to trend. The momentum and ROC indicators show trend by remaining positive while an uptrend is sustained, or negative while a downtrend is sustained. A crossing up through zero may be used as a signal to buy, or a crossing down through zero as a signal to sell. How high (or how low when negative) the indicators get shows how strong the trend is. The way momentum shows an absolute change means it shows for instance a $3 rise over 20 days, whereas ROC might show that as 0.25 for a 25% rise over the same period. One can choose between looking at a move in dol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rate Of Climb
In aeronautics, the rate of climb (RoC) is an aircraft's vertical speed, that is the positive or negative rate of altitude change with respect to time. In most ICAO member countries, even in otherwise metric countries, this is usually expressed in feet per minute (ft/min); elsewhere, it is commonly expressed in metres per second (m/s). The RoC in an aircraft is indicated with a vertical speed indicator (VSI) or instantaneous vertical speed indicator (IVSI). The temporal rate of decrease in altitude is referred to as the rate of descent (RoD) or sink rate. A negative rate of climb corresponds to a positive rate of descent: RoD = −RoC. Speed and rate of climb There are a number of designated airspeeds relating to optimum rates of ascent, the two most important of these are ''VX'' and ''VY''. ''VX'' is the indicated forward airspeed for best angle of climb. This is the speed at which an aircraft gains the most altitude in a given horizontal , typically used to avoid a colli ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rate (other)
Rate or rates may refer to: Finance * Rates (tax), a type of taxation system in the United Kingdom used to fund local government * Exchange rate, rate at which one currency will be exchanged for another Mathematics and science * Rate (mathematics), a specific kind of ratio, in which two measurements are related to each other (often with respect to time) * Rate function, a function used to quantify the probabilities of a rare event * Reaction rate, in chemistry the speed at which reactants are converted into products Military * Naval rate, a junior enlisted member of a navy * Rating system of the Royal Navy, a former method of indicating a British warship's firepower People * Ed Rate (1899–1990), American football player * José Carlos Rates (1879–1945), General Secretary of the Portuguese Communist Party * Peter of Rates (died 60 AD), traditionally considered to be the first bishop of Braga Other uses * Rate (building), the class of a building in late Georgian and early ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Change (other)
Change or Changing may refer to: Alteration * Impermanence, a difference in a state of affairs at different points in time * Menopause, also referred to as "the change", the permanent cessation of the menstrual period * Metamorphosis, or change, a biological process by which an animal physically develops after birth or hatching * Personal development, or personal change, activities that improve awareness and identity * Social change, an alteration in the social order of a society * Technological change, invention, innovation, and diffusion of technology Organizations and politics * Change 2011, a Finnish political party * Change We Need, a slogan for Barack Obama's 2008 presidential campaign * Change.gov, the transition website for the incoming Obama administration in 2008–2009 * Change.org, a petition website operated by Change.org, Inc. * Communities Helping All Neighbors Gain Empowerment (CHANGE), a civic organization based in Winston-Salem, North Carolina * Movement for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Frequency (other)
Frequency refers to how often an event occurs within a given period. Frequency may also refer to: Entertainment * ''Frequency'' (2000 film), a film starring Jim Caviezel and Dennis Quaid * ''Frequency'' (2019 film), a Burmese horror film * ''Frequency'' (TV series), a 2016 TV series starring Peyton List and Riley Smith * ''Frequency'' (Nick Gilder album), 1979 * ''Frequency'' (Frequency album), 2006 * ''Frequency'' (IQ album), 2009 * "Frequency" (song), a 2016 song by Kid Cudi from ''Passion, Pain & Demon Slayin'' * "Frequency", a song by Feeder from their 2005 album ''Pushing the Senses'' * "Frequency", a song by The Jesus and Mary Chain from ''Honey's Dead'' * "Frequency", a song by Super Furry Animals from their album ''Love Kraft'' * Frequency (record producer) (born 1983), American music producer and musician * ''Frequency'' (video game), a 2001 music video game Other * Frequency (gene), a specific gene named "frequency" * Frequency (statistics), the number of occurren ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
