一个采用framebuffer方式向液晶上显示的例子，最基础的显示点。即打开framebuffer、内存映射，直接画点。-By way of a liquid crystal display framebuffer example, the display of the most basic point. That is to open framebuffer, memory mapping, direct drawing point.

allan FOG output error variance analysis, cordic matlab simulation algorithm, A one-dimensional transfer matrix method to calculate the phonon crystal structure.