ebook,Donald M. Davis,The Nature and Power of Mathematics (Dover Books on Mathematics),Dover Publications,General,Cryptography,Fractals,Fractals.,General,Geometry - Non-Euclidean,Geometry, Non-Euclidean,Geometry, Non-Euclidean.,Mathematics,Mathematics / General,Mathematics / Geometry / Non-Euclidean,Number theory,Number theory.,Philosophy of mathematics,Science/Mathematics,Science: general issues,Geometry - Non-Euclidean,Mathematics / General,Mathematics / Geometry / Non-Euclidean,Mathematics,Fractals,Geometry, Non-Euclidean,Number theory,Science/Mathematics,Philosophy of mathematics,Science: general issues" />