A point of the form θ1x1+ · · · + θkxkwith θ1, . . . , θk≥ 0 is called a conic5 k3 N x1 F. r* p( r6 T（欢迎访问avcar：https://avcar.vip）
combination (or a nonnegative linear combination) of x1, . . . , xk. If xiare in a. r: J. e t+ P' e" y2 n! {( I（欢迎访问avcar：https://avcar.vip）
convex cone C, then every conic combination of xiis in C. Conversely, a set C is" r- x& x* B% \5 u7 L0 i（欢迎访问avcar：https://avcar.vip）
a convex cone if and only if it contains all conic combinations of its elements. Like' S9 M9 `. c) S* L) c! i（欢迎访问avcar：https://avcar.vip）
convex (or affine) combinations, the idea of conic combination can be generalized " ]/ z# |+ y2 V q% j0 D4 u1 nto infinite sums and integrals.
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发表于 2020-4-13 16:00:32
