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Staggered vs columnar
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Universities have seen funding cuts from the government, making it harder for the 47-year-old to find the kind of work that used to be supported by grant programmes.
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.