Convex



GRE 蓝宝 Barron TOEFL

解释

GRE 红宝书

• adj. 凸出的
• ［英］ adj. 凸出的 ( curving outward)
• ［记］ 参考: concave ( 凹入) , 比较: vex ( 使...苦恼)

Webster Collegiate

adjective

• Etymology: Middle French or Latin; Middle French convexe, from Latin convexus vaulted, concave, convex, from com- + -vexus; perhaps akin to Latin vehere to carry — more at way
• Date: 1571
• 1.
  • a. curved or rounded outward like the exterior of a sphere or circle
  • b. being a continuous function or part of a continuous function with the property that a line joining any two points on its graph lies on or above the graph
• 2.
  • a. of a set of points containing all points in a line joining any two constituent points
  • b. of a geometric figure comprising a convex set when combined with its interior convex polygon

---