Notecard, disc polynomials of Zernike Card

The elegance of orthogonal polynomials unleashed! We all studied orthogonal polynomials and many of us work with them. Now, the visual beauty of these forms is evident using Zernike's set orthogonal over the unit disc. The coloration is created to highlight the small variations about the zero mean. The effect is captivating. The front face shows the polynomials arranged in a table; the order increases moving downward; the angular frequency increases to the right. On the inside we have the recursion relationship which shows the polynomials in their original form as complex functions. The first few polynomials are listed in complex, Cartesian and polar forms. We see immediately which polynomials are real valued, analytic or simply complex. On the back you see the postage stamp issued to commemorate the Nobel Prize given to Zernike for his discovery of phase contrast microscopy.