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Tag Archives: rotation
What is an eigenvector?
The eigenvectors of a matrix summarise what it does. Think about a large, notsparse matrix. A lot of computations are implied in that block of numbers. Some of those computations might overlap each other—2 steps forward, 1 step back, 3 steps … Continue reading
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Tagged affine, econometrics, education, eigenvalue, eigenvector, eigenvectors, function, helicopters, images, linear algebra, math, mathematics, maths, matrices, Photoshop, rotation, science, shear, transformations, transforms
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You know what’s surprising? Rotations are linear transformations. I guess lo conocí but no entendí. Like, I could write you the matrix formula for a rotation by θ degrees: But why is that linear? Lines are straight and circles bend. When you rotate something … Continue reading
Posted in Uncategorized
Tagged facts, image, intuition, linear algebra, linear mapping, math, mathematics, maths, matrix, projection, rotation, tensor, unintuitive, why
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