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This is a fun day. No new math, just a cool application of the math we’ve seen.
The in-class assignment pretty well speaks for itself. It’s worth mentioning that, despite the very simplified and silly nature of this specific assignment, the underlying message—that matrices are used to transform images in computer graphics—is absolutely true.
Some students (good students) may question why the last column is necessary in specifying Harpoona’s initial condition. The reason is this representation is not simply a list of all the corner points in a shape. Yes, each column represents a point. But the matrix is a set of instructions to the computer, to draw lines from this point to that point. Without the last column, Harpoona would be missing her hypotenuse.
Our first test on matrices.
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