31. The solution is broken up into plane waves . 32. Special examples are the Gaussian quadrature for polynomials and the Discrete Fourier Transform for plane waves . 33. The term is often used to mean the special case of a monochromatic, homogeneous plane wave . 34. On the down side, scattering calculations using the reciprocal lattice basically consider an incident plane wave . 35. Of the plane wave is of major interest. 36. Which represents a propagating or exponentially decaying uniform plane wave solution to the homogeneous wave equation. 37. In a plane wave for instance, the wave intensity is the same everywhere at all times. 38. An example is the plane wave given by 39. In linear uniform media, a wave solution can be expressed as a superposition of plane waves . 40. All spatial dependence of the individual plane wave components is described explicitly via the exponential functions.