Anyone in the course can use this blog to post questions, answer questions or post interesting links, news and scholarly articles related to the topic of differential equations. This space is for all of us, so please stay on topic, but otherwise use it freely.
Notice that you can actually add mathematical symbols to your post if you know Latex. To post math equations please follow the link: https://wordpress.org/plugins/mathjax-latex/
If you would like to know more about Latex, I recommend the excellent online wiki book. Also, a simple google search will provide you with thousands of different sources that may appeal more to you.