你的，你要移民破破破
A point of the form θ1x1+ · · · + θkxkwith θ1, . . . , θk≥ 0 is called a conic
combination (or a nonnegative linear combination) of x1, . . . , xk. If xiare in a
convex cone C, then every conic combination of xiis in C. Conversely, a set C is
a convex cone if and only if it contains all conic combinations of its elements. Like
convex (or affine) combinations, the idea of conic combination can be generalized
to infinite sums and integrals.
我认真的看
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理解和郭富城
厉害了我的哥
是我必须不是靠时间
我要去学习啦
睡觉睡觉你说呢{:5_156:}