I've seen quite a few people putting some mathematical symbols and Greek letters in both their questions and answers here on Yahoo Answers. I've been trying to find a way to do it. I just found one that will allow some to be entered. I go into MS Word; click on "Insert" in the tool bar at the top. Then, on the drop-down menu that results, click on "Symbol". This gives you a choice of lots of symbols and non-Roman letters like Greek, Hebrew, Arabic, etc. So you insert those into an empty MS Word doc and then cut-and-paste them into the Answers question (or details) entry window. Here are examples: Ψ, φ, θ, λ, ∑, ∏, ∞, √, ∫, ∂, ∆.
Do you know of any other ways to do this? I'm especially interested in ways that will allow more symbols.