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Inverse
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English Dictionary: inverse by the DICT Development Group
4 results for inverse
From WordNet (r) 3.0 (2006) [wn]:
inverse
adj
  1. reversed (turned backward) in order or nature or effect
    Synonym(s): inverse, reverse
  2. opposite in nature or effect or relation to another quantity ; "a term is in inverse proportion to another term if it increases (or decreases) as the other decreases (or increases)"
    Antonym(s): direct
n
  1. something inverted in sequence or character or effect; "when the direct approach failed he tried the inverse"
    Synonym(s): inverse, opposite
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
   Inverse \In"verse\, n.
      That which is inverse.
  
               Thus the course of human study is the inverse of the
               course of things in nature.                     --Tatham.

From Webster's Revised Unabridged Dictionary (1913) [web1913]:
   Inverse \In*verse"\, a. [L. inversus, p. p. of invertere: cf. F.
      inverse. See {Invert}.]
      1. Opposite in order, relation, or effect; reversed;
            inverted; reciprocal; -- opposed to {direct}.
  
      2. (Bot.) Inverted; having a position or mode of attachment
            the reverse of that which is usual.
  
      3. (Math.) Opposite in nature and effect; -- said with
            reference to any two operations, which, when both are
            performed in succession upon any quantity, reproduce that
            quantity; as, multiplication is the inverse operation to
            division. The symbol of an inverse operation is the symbol
            of the direct operation with -1 as an index. Thus sin-1 x
            means the arc whose sine is x.
  
      {Inverse figures} (Geom.), two figures, such that each point
            of either figure is inverse to a corresponding point in
            the order figure.
  
      {Inverse points} (Geom.), two points lying on a line drawn
            from the center of a fixed circle or sphere, and so
            related that the product of their distances from the
            center of the circle or sphere is equal to the square of
            the radius.
  
      {Inverse}, [or] {Reciprocal}, {ratio} (Math.), the ratio of
            the reciprocals of two quantities.
  
      {Inverse}, [or] {Reciprocal, {proportion}, an equality
            between a direct ratio and a reciprocal ratio; thus, 4 : 2
            : : [frac13] : [frac16], or 4 : 2 : : 3 : 6, inversely.

From The Free On-line Dictionary of Computing (15Feb98) [foldoc]:
   inverse
  
      Given a {function}, f : D -> C, a function g : C
      -> D is called a left inverse for f if for all d in D, g (f d)
      = d and a right inverse if, for all c in C, f (g c) = c and an
      inverse if both conditions hold.   Only an {injection} has a
      left inverse, only a {surjection} has a right inverse and only
      a {bijection} has inverses.   The inverse of f is often written
      as f with a -1 superscript.
  
      (1996-03-12)
  
  
No guarantee of accuracy or completeness!
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