Scalar Multiplication for AI: Turn a Vector Up, Down, or Around
Scale vectors coordinate by coordinate, predict direction and magnitude, and connect the same operation to embeddings, learning rates, and NumPy.
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#vectors
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Vectors as AI Data: How Features Turn a Document Into Numbers
Learn to read row and column vectors, build a document feature vector by hand and in NumPy, and catch shape or feature-order mistakes.
From vectors to embeddings: the geometry behind similarity
Build an intuitive understanding of vectors, dot products, cosine similarity, and why embeddings turn meaning into geometry.