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Free math/stat textbooks: Seltman's Experimental Design   Beezer's Linear Algebra   Grinstead & Snell's Intro to Probability   Gray's Probability, Random Processes, and Ergodic Properties   Strang's Calculus   Trench's Elementary Differential Equations Trench's Real Analysis (and others)   Zakon's Mathematical Analysis   Cain's Complex Analysis   Petersen's Matrix Codebook (pdf)   Kaw's Numeric Analysis

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