astaticism


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Related to astaticism: asceticism

a·stat·ic

 (ā-stăt′ĭk)
adj.
1. Unsteady; unstable.
2. Physics Having no particular directional characteristics.

a·stat′i·cal·ly adv.
a·stat′i·cism n.

astaticism

the condition of constant, uninterrupted variability of direction or position. — astatic, adj.
See also: Physics
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To ensure a zero steady-state error of the system in this mode, a second order of the system's astaticism is required for the determining influence.