扎扎实实，踏踏实实，言犹在耳，发人深省。
致力非凡之事业，必有非凡之精神。
，这一点在safew官方版本下载中也有详细论述
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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