quasi-concave function

例句：

1. 1.This quasi-concave function has a unique property that makes it suitable for certain applications.
   这个准凹函数具有独特的性质，使其适用于某些应用。
2. 2. The quasi-concave function was used to model the shape of the object in question.
   准凹函数被用来模拟所讨论物体的形状。
3. 3.The quasi-concave function is often used in optimization problems to find the minimum point.
   准凹函数经常用于优化问题中，以找到最小点。