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Two American Teenage Girls May Have Cracked a 2,000-Year-Old Math Puzzle With a Stunning New Pythagoras Proof

For over two millennia, mathematicians agreed on one thing: you can’t use trigonometry to prove Pythagoras’ Theorem—because ...
IEEE

Strapdown inertial navigation using dual quaternion algebra: error analysis

Abstract: In a strapdown inertial navigation system (INS), the general displacement of a rigid body is traditionally separately modeled and analyzed, i.e., direction cosine matrix or quaternion for ...

Bankers finally get the deal math to add up

Fifth Third is buying rival Comerica for $11 bln in stock to create a more formidable lender with $290 bln of assets. Unlike ...