Design philosohpy:
-	Create a *fast* numerical analysis library. This means making
	use of libraries such as ATLAS. Emphasize speed on very large
-	Make it possible to write math expressions as short, consise
	one-liners, such as: M.Add(M.Sin(x), M.Cos(y)), where x and y
	are matrices.
-	This implies that we should try to avoid returning two values
	in math functions, but instead panic on non-recoverable error
	or return NaN.
-	Use functions just like in mathematics, not methods, which
	are hard to decipher as operators.
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