Definition of quadratic

Definition of quadratic
  1. quadratic Adjective square-shaped
  2. quadratic Adjective of a polynomial, involving the second power (square) of a variable but no higher powers, as ax^2 + bx + c.
  3. quadratic Adjective of an equation, of the form ax^2 + bx + c = 0.
  4. quadratic Adjective of a function, of the form y = ax^2 + bx + c.
  5. quadratic Noun A quadratic polynomial, function or equation.
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