electronic whiteboard cost. It is possible to convert them into mathematical models, and after solving or simulating, draw quantitative conclusions, and then qualitatively summarize these conclusions. In order to achieve a leap in understanding, form a solution to the problem. In market analysis research, there are many qualitative and quantitative methods, such as expert opinion method, investigation method and other qualitative methods. In order to make a satisfactory market analysis decision, we cannot rely solely on quantitative analysis methods, but also on the influence of qualitative variables such as information and human behavior. With the rapid development of computer technology, computer simulation has become a very important means of various research, especially for complex systems. Market analysis research is no exception. In the process of market analysis management, in order to use computer-aided decision-making, There are methods to quantify the above qualitative variables, such as generalized quantization theory, multidimensional scaling method, and so on. In addition, in order to adapt to the needs of market analysis and research, it is also a very important question to study how to use qualitative analysis results to explain quantitative analysis conclusions and how to use quantitative analysis results to test qualitative analysis conclusions.. The IQAio GR519 is an upgraded lightweight version based on the original IQAio GR511. The original dual-cavity structure was changed to a bottom-edge structure, so that the minimalist design accommodates modern classrooms and conference rooms. With one IQProjector V2 and one IQView E3821, you can achieve flexible and intelligent classroom.