Let me explain a bit about my logo. The foreground words are self-explanatory except for the ???? symbol used in place of the “T”. ???? is the Greek letter pi. Greek symbols are used extensively in maths and ???? is the most common one used. You will see it used many times in subsequent posts. The background equations not only have math equations, but symbols representing all sorts of math applications: astronomy, biology, chemistry, genetics, nuclear physics, electronics, … . I think this is a very appropriate logo for me. What do you think?