Practice is the only standard for testing the truth, when you want to test their own learning a need to do experiments to test. The following is organized by me for you to "experimental experience of four", for reference only, welcome to read.

Part I: Experimental experience

University mathematics experiment for us is an unfamiliar subject. University mathematics experiment as an emerging mathematics course in the last decade has made rapid development. Mathematical experiments with computer technology and mathematical software as a carrier, the ideas and methods of mathematical modeling into it, has now become a trend.

At the beginning of the study of university mathematics experiment when I have a sense of fear, because it is unfamiliar, although in the study of numerical analysis contact with MATLAB, but that is only skin deep. College math lab only let me really understand the subject, really learned the use of MATLAB, and have a certain understanding of mathematical modeling. MATLAB in various fields have applications, as a mathematics student for MATLAB to solve mathematical problems is quite shocked, really powerful. The math lab course has taught me a lot of things and has been very rewarding.

In the first class, I learned some basic history of the development of math experiments and some basic knowledge. Through this semester's study, after learning this course, let me know the original mathematics and real life is so closely connected, many problems can be solved with the help of mathematical methods. For some practical problems, we can establish mathematical models, simplify the problem, and then use some mathematical tools and methods to solve.

University of Mathematics experiment we learned the MATLAB programming method, although only a software, but the whole book available points of mathematical knowledge is not a lot, such as interpolation, fitting, calculus, linear algebra, probability theory and mathematical statistics, etc., and now we finally know how to use the knowledge of the textbook for practical problems, can be said to be a very wide range of applications.

At first, I was very unfamiliar with MATLAB, and felt that this software was very difficult, thinking that it was as hard to learn as the C language, and that the software was in English, which was a nightmare for people like me whose English is very bad. But after a period of learning, I felt that it was not as scary as I had imagined, and it was a lot of fun.

I think learning this course needs to do the following: 1, more use of matlab to write, debugging program 2 for do not know the program to try to figure out where the problem is 3, and more exchanges with classmates under the class, the class more teachers.

Article 2: Experimental experience

As a teacher of high-frequency electronics, high-frequency basic experiments can be considered to be a brand new experimental attempts to make students. For example: novelty, strong principles, etc., students from the beginning of a blank slate, to later familiar with, like, feel that they have learned a lot, a lot. Counting up only six times for students to do experiments, just a preliminary contact, but feel that students have learned a lot of things. Some of the things that can not be learned from books.

I think to do a good job of high-frequency electronic experiments, need to realize the following points:

1, adequate preparation is necessary. In the past to do electronic skills training and assessment of the experimental bench electrician experiments students often only look at the steps, the principle of a pass. This will be a big loss when doing experiments. Generally before the experiment to spend an hour to study. This test results are satisfactory.

2, you need to predict the results in advance, at least in the encounter problems will be reasonable to analyze the problem. The reason why I say this is that there is a blood lesson, because a student was blind to a problem in the process, leading to the tragic fate of redoing.

3, some experimental precautions to care. Here is not to say that I broke something, but based on a truth that everyone understands: water and fire, electricity is more ruthless. It may be due to my reasons, I let the students experiment every time, seems to be very uneasy about the students, can be described as everything, and again and again, which also has a benefit: the possibility of experimental error is greatly reduced, but also a great increase in the security of life.

In the process of experimentation, students learn how to analyze the problem, how to solve the problem, and how to summarize the problem. Through this period of high-frequency electronic experiments, students can grasp some of the basic theory of high-frequency electronics. Let's say lc resonant circuit, band broadening and so on. Let the students realize that they can apply the knowledge into the life just through some simple experimental instruments. This is a great benefit to the students' future development, I think.

Practice is the only standard to test the truth, I think the reason why the electrician and electronic power drag training and assessment of high-frequency electronic experiments will be very popular among students, and is regarded as the school's open laboratories, and its experiments and students in the principle of walking together is inseparable. I hope to have the opportunity to enter this laboratory in the future.

Article 3: Experimental experience

This week, the main electrician experimental design and guidance, after a week, we in the tutor and hard work to help guide under the completion of this experimental tasks, this experimental design a *** carried out four, before conducting experiments, be sure to review and master the textbook first, in order to facilitate the experimental conduct and design. I designed the verification of Davignan's theorem experiment, the basic amplification circuit experiment, logic circuit four people voting machine design experiment and hexadecimal circuit design experiment, first of all, in the Davignan's theorem experimental design, after their own information to find and repeat the design, to rule out the experimental process of some of the difficulties encountered, and finally successfully completed the experimental tasks and requirements, in the amplification circuit design on the Encountered a certain degree of difficulty, perhaps because these experiments are electrical teaching in the next book of content, in terms of knowledge is still not enough to master, so encountered more difficulties, through the guidance of the teacher and the help of classmates, step by step to improve and design, the design process also learned a lot of knowledge of amplified circuits, more in-depth understanding of the basic principles of amplified circuits. The design of the hexadecimal to understand the role of the chip, know the principles of the chip, the last design is the logic circuit experiments, the design of each experiment has experienced many setbacks, resulting in a lot of problems, we appeared on the problem of the experimental design step by step modification, which also helped us figure out a lot of problems.

The experimental process, from the discovery of the problem to solve the problem, all let us better understand and learn to the lack of knowledge of the electrician, so that we are more in-depth and thorough learning to master this knowledge, I think that the experiment is not only more in-depth learning to the knowledge of the electrician, but also to develop their own independent thinking, hands-on ability, and we learned a lot of methods of learning, which are valuable assets in the future. These are valuable assets for the future. Through the electrician experimental design, from theory to practice, although more is suffering, but after learning, will find that we gained really a lot, so these efforts are worthwhile.

The experiment we also used the ewb software drawing, which is a very useful software, we learn this software in electrical engineering to help the future learning is very significant, so this is also a major gain. The experiment took me more time, but also due to the experimental week and exam arrangements closer, so do and have a certain degree of haste, experimental design flaws are still very obvious, so after the teacher and students of the criticism and correction, very grateful for your help, I think the experimental design of the harvested bits and pieces, in the future will be able to play an important role in helping us!

Article 4: Experimental experience

Circuit experiments, as a real experimental discipline, is the foundation and basis of circuit knowledge. It can help us further understand and consolidate the knowledge of circuitry, stimulate our interest in learning about circuits. At the end of the first semester of the sophomore year, we conducted a series of circuit experiments, from the verification of simple Kirchhoff's law to the use of oscilloscopes, and then to the first-order circuits -, a **** five experiments, through these five experiments, I have a deeper understanding of circuit experiments, and experienced the magic and wonder of circuits. But to be honest before doing this experiment, I thought it would not be difficult to do, just like the previous experiments, the operation should not be difficult to do the experiment, after doing the experiment in two clicks, the experiment report will be written, until when I did this circuit experiment, I realized that in fact, it is not easy to do. It's really not as simple as I thought, naively thought I could complete the experiment very smoothly by learning the usual theoretical lessons well, the fact proves that I was wrong, when I walked on the test bench, I realized that it is very difficult to complete all the experiments in this time with excellent grades, but I know that this difficulty is directly proportional to the knowledge learned, so I would like to say that, although I encountered quite a lot of difficulties in the process of experimentation. But the final result is still good, because after all, I learned a lot of things in this experiment in the classroom can not learn, after all, so that I benefit a lot in this experiment.

I would like to talk about my experience in the experiments I did:

In the Kirchhoff's law and the superposition theorem verification experiments, further study of Kirchhoff's law and the superposition theorem of the application of the schematic diagram, according to the drawing, connected to the actual circuit, measured the experimental data, the experimental results are calculated within the error range, that is, the experiments were done successfully. I think the experimental principle of these two experiments is still relatively simple, but the actual operation is not very simple, at least I think that those lines of colorful wires will be enough to put you around the eye, so I want to say that this experiment is not only on your knowledge of the investigation of the situation, it is more on your patience and eyesight of a test.

In the verification experiment of Davignan's theorem, it is understood that for any linear active network, you can always use a voltage source in series with a resistor to equivalent instead of the voltage source of the electric potential us is equal to the active two-terminal network of the open-circuit voltage uoc, and its equivalent internal resistance ro is equal to the network of all the independent sources are set to zero when the equivalent resistance. This is the Davignan theorem specification, I think the essence of the concept of equivalence in the elaboration, I think whether you are learning theoretical knowledge or practical operation, as long as you grasp the center, I think you may have encountered the continuation of the problem can be solved. But in doing this experiment, I think we should pay attention to the use of the multimeter, although its operation is very simple, but if you are sloppy and careless is also completely possible to make mistakes, is your entire experiment foregone!

In the next experiment in the use of commonly used electronic instruments, we chose the use of oscilloscopes, we understand the principle of oscilloscopes, the initial learning of the use of oscilloscopes. In the experiment we observed a variety of waveforms at different frequencies, different amplitudes, and through the millivoltmeter to derive the millivoltmeter readings in different situations.

Overall, through this circuit experiment, my harvest is really quite big, not only learned some together with the use of, such as millivoltmeter, oscilloscope, etc., more importantly, in the process of this experiment, the better to develop our specific experimental ability. And because in the experimental process there are many experimental phenomena, we need to carefully observe, and analyze the reasons for the phenomenon. Especially when the experimental phenomena do not match our expected results, it is more necessary for us to think carefully and analyze, and make appropriate adjustments. Therefore, the circuit experiment can develop our observation ability, hands-on ability and independent thinking ability.