The Lounge is a place where students and other visitors can sit, relax, get a cup of coffee/tea and talk about math. The aim is to develop an online forum where students can communicate freely, share ideas and discuss mathematical problems (they’ll have to get their own coffee though ;-)). You are welcome to post your problem here by commenting on this post. I cannot guarantee that I will have time to answer each and every question but the hope is that users of the blog can step in and help each other. Posting direct homework problems is discouraged. Any feedback is appreciated.