This fall Dr. Yinlin Dong joined the mathematics department as an assistant professor in applied mathematics. He received his Ph.D. from the University of Texas at Arlington.

**(1) Please tell us a little about yourself.**

I did my undergraduate in China, where I worked in industry for two years. After that I came to the States and have been at the University of Alabama, University of Central Florida, and the University of Texas at Arlington. I live with my wife and two sons, Charles and Allen, and am now excited to join the family here at UCA!

**(2) Tell us a little about your research.**

I study numerical methods and grid generation. For example, there are methods for discretizing partial differential equations and solving them numerically. This discretization requires working on a grid of some sort, and I study how these grids should be constructed. A good grid allows solution methods to adapt to complex structures: the grid is fine in regions of large variation to enhance accuracy, but can be coarse where the solution has little variation in order to achieve efficiency.

**(3) Can you give us an example of an application of this research?**

One great example is in airfoils. NASA designs many of these, and they need to determine exactly how to shape them. In order to find the best shape, they need to solve physics problems and use numerical methods. My research applies to identifying the appropriate numerical method and corresponding grid generation approach to these problems.

**(4) When did you become interested in your research?**

Throughout school I knew I was going to focus on some kind of science or math. I had a particular high school teacher that really helped inspire me; ultimately it was my Ph.D. advisor that helped guide me into the field of numerical methods.

**(5) Tell us about the courses you teach.**

I teach both numerical analysis and numerical methods. Though sometimes confused with each other, numerical analysis is more theoretical and focuses on why methods work, while numerical methods focuses more on how such methods work. Right now being my first semester I’ve tried to keep my courses straightforward. In the future I hope to be able to get students involved more in projects and presentations.

**(6) What is your favorite part of your position here at UCA?**

Teaching is one of the best parts! I enjoy the moments of sharing the beauty of math with students. The environment here is quite flexible, and I’m still exploring the surrounding area.

**(7) What is the most challenging part of your position here at UCA?**

I have high expectation in student learning in upper level courses. But some students do not turn in assignments on time and are reluctant to ask questions. How do they expect to learn without putting their skills to practice? I am learning our students and our course settings. I will figure it out as the semester goes.