different between nonlinear vs bispectrum

English

non- +? linear

nonlinear (not comparable)

(of a set of points) Not lying on a straight line.
(chemistry, of a molecule) Whose atoms do not lie in a straight line.
(mathematics, of a function) Having a product of independent variables, or a variable with an exponent not equal to one.
(of a system) Whose output is not directly proportional to its input.
Erratic and unpredictable; tending to jump back and forth.
a film with a nonlinear plot

bi- +? spectrum

bispectrum (plural bispectra)

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