Another way to approach the linear combination is to look at it geometrically. This is where the idea of barycentric coordinates can help. A barycentric coordinate system describes the location of a point as the weighted sum of the regular coordinates of the vertices forming a simplex. In other words, it describes a linear combination with respect to a set of points, where in -dimensional space.
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例如，青海依托年均仅3.4摄氏度的冷凉气候，数据中心可实现全年超300天自然冷却，其制冷耗电量比全国平均水平低约40%，将电能利用效率PUE值控制在1.2以下的先进水平，于是，全国首个100%清洁能源可溯源的绿色大数据中心便在青海建成。
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