Computer science and technology is always one of my major interests. The earliest server/website/personal computer I had ever hacked traced back to the time when I was in junior high. At that time I was not only obsessed with hack technology but also various computer software/DIY of hardware. I spent the summer before university entrance learning MATLAB and math courses in advance. I used MATLAB during my undergraduate years to realize many interesting modelling cases I came up with during daily study life. The coding brought me the fun of realizing any idea without the impede from "'some kind of repetitive work'. This is why I keep studying with coding. Hence, I would prefer study physics in my PhD through a numerical perspective. Here are the two examples of my numerous codes made during past few years. One thing should be noted that I also made some CFD codes in Anderson's textbook (1D thermal diffusion, 2D supersonic plate, 1D Laval nozzle, etc) in Fortran 90.