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Barycenter({(2, 0), (0, 2), (-2, 0), (0, -2)}, {1, 1, 1, 1}) yields point A(0, 0)Barycenter({(2, 0), (0, 2), (-2, 0), (0, -2)}, {2, 1, 1, 1}) yields point B(0.4, 0). The x-coordinate of this point was determined by = = 0.4
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原文：https://www.cnblogs.com/igoodful/p/14979304.html