A point of the form θ1x1+ · · · + θkxkwith θ1, . . . , θk≥ 0 is called a conic- c8 X0 G6 ?, o' k- X(欢迎访问avcar:https://avcar.vip)
combination (or a nonnegative linear combination) of x1, . . . , xk. If xiare in a $ A* O+ u% K" ~( W8 Lconvex cone C, then every conic combination of xiis in C. Conversely, a set C is& B/ x5 A! l, z(欢迎访问avcar:https://avcar.vip)
a convex cone if and only if it contains all conic combinations of its elements. Like6 j9 `% y, a; M(欢迎访问avcar:https://avcar.vip)
convex (or affine) combinations, the idea of conic combination can be generalized 7 }" ?! |7 p9 A. i0 `" w/ G, i+ Wto infinite sums and integrals.