名词
中文翻译：二阶充分条件
同义词：
['second-order condition', 'second-order necessary condition']
例句：
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1.The second-order sufficient condition for the system to be stable is that the matrix must be positive definite.
系统稳定的第二阶充分条件是矩阵必须是正定的。
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2.In economics, a second-order sufficient condition for an equilibrium is that the marginal utility of consumption must exceed the marginal utility of saving.
在经济学中，均衡的第二阶充分条件是消费的边际效用必须超过储蓄的边际效用。
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3. In mathematics, a second-order sufficient condition for a polynomial equation to have a root is thatits discriminant must be nonnegative.
在数学中，多项式方程有一个根的第二阶充分条件是它的判别式必须是非负的。