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4 definitions found
 for interpolation
From The Collaborative International Dictionary of English v.0.48 :

  Interpolation \In*ter`po*la"tion\, n. [L. interpolatio an
     alteration made here and there: cf. F. interpolation.]
     1. The act of introducing or inserting anything, especially
        that which is spurious or foreign.
        [1913 Webster]
  
     2. That which is introduced or inserted, especially something
        foreign or spurious.
        [1913 Webster]
  
              Bentley wrote a letter . . . . upon the scriptural
              glosses in our present copies of Hesychius, which he
              considered interpolations from a later hand. --De
                                                    Quincey.
        [1913 Webster]
  
     3. (Math.) The method or operation of finding from a few
        given terms of a series, as of numbers or observations,
        other intermediate terms in conformity with the law of the
        series.
        [1913 Webster]

From WordNet (r) 3.0 (2006) :

  interpolation
      n 1: a message (spoken or written) that is introduced or
           inserted; "with the help of his friend's interpolations his
           story was eventually told"; "with many insertions in the
           margins" [syn: interpolation, insertion]
      2: (mathematics) calculation of the value of a function between
         the values already known
      3: the action of interjecting or interposing an action or remark
         that interrupts [syn: interjection, interposition,
         interpolation, interpellation]

From Moby Thesaurus II by Grady Ward, 1.0 :

  77 Moby Thesaurus words for "interpolation":
     addition, affix, allonge, appendix, approximation, aside, cadenza,
     coda, codicil, commentary, differentiation, division, embedment,
     enclitic, entrance, envoi, epilogue, episode, equation, evolution,
     extempore, extrapolation, flourish, graft, grafting, hot lick,
     impaction, impactment, implantation, impromptu, improvisation,
     infix, infixion, infusion, injection, inoculation, insert,
     insertion, insinuation, integration, intercalation, interjection,
     interlineation, interlocution, introduction, intromission,
     inversion, involution, lick, marginalia, multiplication, notation,
     note, obiter dictum, parenthesis, penetration, perfusion,
     postscript, practice, prefix, proclitic, proportion, reduction,
     remark, rider, riff, scholia, side remark, subtraction, suffix,
     tail, tessellation, tossing-in, transformation, transplant,
     transplantation, vamp
  
  

From The Free On-line Dictionary of Computing (30 December 2018) :

  extrapolation
  extrapolate
  interpolation
  
      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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