A Golden Spiral is simulated by a continuously expanding sequence of golden rectangles and inscribed quarter circles.... read more >>

  Season's Greetings help greetings % greetings Seasonal holiday fractal. % greetings(phi) generates a seasonal holiday fractal that depends % upon the parameter phi. The default... read more >>

This is the second part of a series of posts about Marc Kac's 1966 paper in the American Mathematical Monthly [1]. This part is devoted to contour plots of the eigenfunctions. ... read more >>