completely convex function

例句：

1. 1. Thefunction is completely convex, meaning ithas no corners or edges.
   这个函数是完全凸的，意味着它没有角或边缘。
2. 2. The shape of the surface is completelyconvex, which makes it easy todraw curves.
   表面的形状是完全凸的，这使得绘制曲线变得容易。
3. 3. Inmathematics, acompletely convex function is onethat has no vertical asymptotes.
   在数学中，一个完全凸函数是没有垂直渐近线的函数。