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Trilinear and triquadratic functions

  1. Aug 2, 2011 #1
    Can anyone tell me what are trilinear functions and triquadratic functions with an example?but I think they are extensions of linear and quad functions to 3 dimensions, please help
  2. jcsd
  3. Aug 3, 2011 #2


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    Yes, that's exactly what they are. An example of a "tri-linear function" would be
    [tex]f(x,y,z)= 3x- 2y+ 4z[/tex]

    An example of a "tri-quadratic" function would be
    [tex]g(x,y,z)= x^2+ y^2+ z^2[/tex]
    and another would be
    [tex]h(x,y,z)= xy+ yz+ xz[/tex]
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