Science and Mathematics
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Mathematics
The most common errors in undergraduate mathematics (External)
Top-Down Calculus (free e-book) (External)
Earliest Uses of Various Mathematical Symbols (External)
OpenStax - Math (free e-books) (External)
Rectangle Intersection Demonstration (External)
Generating Worlds with Wave Function Collapse (External)
WebWork Problem Library (External)
Physics
Impact and Explosion Effects calculator (External)