Second-order
(Redirected from Second order)
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Second-order may refer to:
Mathematics[edit]
- Second order approximation, an approximation that includes quadratic terms
- Second-order arithmetic, an axiomatization allowing quantification of sets of numbers
- Second-order differential equation, a differential equation in which the highest derivative is the second
- Second-order logic, an extension of predicate logic
- Second-order perturbation, in perturbation theory
Science and technology[edit]
- Second-order cybernetics, the recursive application of cybernetics to itself and the reflexive practice of cybernetics according to this critique.
- Second-order fluid, an extension of fluid dynamics
- Second order Fresnel lens, a size of lighthouse lens
- Second-order reaction, a reaction in which the rate is proportional to the square of a reactant's concentration
Psychology and philosophy[edit]
- Second-order conditioning, a form of learning from previous learning
- Second-order desire, the desire to have a desire for something
- Second-order stimulus, a visual stimulus distinguished by an aspect other than luminance
Other uses[edit]
- Second Order (religious), the cloistered nuns who are affiliated with mendicant orders of friars
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