convex

英 [ˈkɒnveks]

美 [ˈkɑːnveks]

adj.  凸出的; 凸面的

TOEFLGRETEM4TEM8

BNC.16763 / COCA.23277

牛津词典

adj.

• 凸出的；凸面的
  curving out
  1. a convex lens/mirror
     凸透镜；凸镜

柯林斯词典

• ADJ-GRADED 凸起的;凸面的
  Convexis used to describe something that curves outwards in the middle.
  1. ...the large convex mirror above the fireplace.
     壁炉上方的大凸面镜

英英释义

adj

• curving or bulging outward
  Synonym:bulging

双语例句

• It was proved that, when the objective function was uniformly convex, this algorithm possessed superlinear convergence.
  证明该算法在目标函数为一致凸时具有局部超线性收敛性。
• Lastly, it presents a necessary condition for local uniform convex point.
  最后给出了局部一致凸点的一个必要条件。
• The problem of robust stability analysis for convex polytopic uncertain discrete-time systems with multiple-state delays is investigated.
  研究了具有多重状态时滞的凸多面体不确定离散系统的鲁棒稳定性分析问题。
• Alternative characterization of concave and convex functions which is sometimes useful.
  对于凹函数和凸函数还有一个替补的表征，有时它是有用的。
• The convex surfaces face toward the left.
  凸面朝左方。
• Concave on one side and convex on the other with the concavity being greater than the convexity.
  一边凹一边凸，而且凹度比凸度大。
• The convex plate consists of a cylinder and a cone.
  所述的凸台由圆柱体和圆锥体两部分组成。
• The Optimal Approximation of Matrices on Some Closed Convex Cone; relating to or resembling a cone.
  矩阵在闭凸锥上的最佳逼近（英文）与锥体有关或类似于锥形。
• In this paper the definition of semi-linear topological space and locally convex semi-linear topological space is given.
  本文定义了半线性拓扑空间及局部凸半线性拓扑空间，研究了这些空间的性质。
• The formula is given for? calculating? generalized directional derivative by using the directional derivative of convex functions.
  给出了用凸函数方向导数计算广义方向导数的公式。