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extrapolation    音标拼音: [ɪkstr,æpəl'eʃən]
n. 外推法,推断

外推法,推断

extrapolation
外插; 外推法

extrapolation
n 1: (mathematics) calculation of the value of a function
outside the range of known values
2: an inference about the future (or about some hypothetical
situation) based on known facts and observations

60 Moby Thesaurus words for "extrapolation":
accession, accessory, accompaniment, actualization, addenda,
addendum, additament, addition, additive, additory, additum,
adjunct, adjuvant, annex, annexation, appanage, appendage,
appendant, approximation, appurtenance, appurtenant, attachment,
augment, augmentation, coda, complement, concomitant, continuation,
corollary, differentiation, division, equation, evolution,
extension, exteriorization, externalization, fixture, increase,
increment, integration, interpolation, inversion, involution,
multiplication, notation, objectification, offshoot, pendant,
practice, projection, proportion, reduction, reinforcement,
side effect, side issue, subtraction, supplement, tailpiece,
transformation, undergirding

A mathematical procedure which
estimates values of a {function} for certain desired inputs
given values for known inputs.

If the desired input is outside the range of the known values
this is called extrapolation, if it is inside then it is
called interpolation.

The method works by fitting a "curve" (i.e. a function) to two
or more given points and then applying this function to the
required input. Example uses are calculating {trigonometric
functions} from tables and audio waveform sythesis.

The simplest form of interpolation is where a function, f(x),
is estimated by drawing a straight line ("linear
interpolation") between the nearest given points on either
side of the required input value:

f(x) ~ f(x1) (f(x2) - f(x1))(x-x1)/(x2 - x1)

There are many variations using more than two points or higher
degree {polynomial} functions. The technique can also be
extended to functions of more than one input.

(2007-06-29)


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  • Extrapolation - Wikipedia
    In mathematics, extrapolation is a type of estimation, beyond the original observation range, of the value of a variable on the basis of its relationship with another variable
  • Extrapolation Interpolation: Definition, Examples - Statistics How To
    Extrapolation is a way to make guesses about the future or about some hypothetical situation based on data that you already know You’re basically taking your “best guess”
  • EXTRAPOLATE Definition Meaning - Merriam-Webster
    Party officials extrapolated public sentiment on one issue from known public reaction on others Researchers extrapolate present trends to construct an image of the future Did you know?
  • What is Extrapolation? - GeeksforGeeks
    Extrapolation is a statistical technique used to estimate or predict values beyond the range of observed data It involves extending a trend or pattern observed in existing data to make predictions about future or unseen data points
  • What Is Extrapolation: How It Works and Its Risks
    Extrapolation is the process of estimating a value that falls outside the range of data you already have If you know a trend based on existing observations, extrapolation extends that trend forward (or backward) to predict something you haven’t yet measured
  • What Is Extrapolation? (Definition, Benefits, How to Use) | Built In
    Extrapolation is a statistical method that uses existing data to predict future or unknown values that fall outside the range of the existing data It’s particularly useful for geospatial and time series analysis
  • Interpolation vs. Extrapolation: Whats the Difference? - Statology
    This tutorial explains the difference between interpolation and extrapolation in statistics, including several examples
  • Extrapolations (TV series) - Wikipedia
    Extrapolations is an American anthology television miniseries created by Scott Z Burns for Apple TV+ The series premiered on March 17, 2023 [1][2] An anthology series that depicts the effects of climate change on the planet through various different points of view through interconnected stories
  • EXTRAPOLATION | English meaning - Cambridge Dictionary
    EXTRAPOLATION definition: 1 the process of using information that is already known to guess or think about what might… Learn more
  • What Is Interpolation and Extrapolation, Explained
    Extrapolation is estimating a value beyond them Both techniques use existing data to fill in unknowns, but they differ in one critical way: interpolation works within the range of what you’ve already observed, while extrapolation projects outside that range into uncharted territory





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