The formulas are lost again, years later, evidently. Would a moderator consider editing the OP so the formulas are present (also) in "ugly text"? If the images are resurrected and then lost again, the thread would remain usable.
Alas, one of the ongoing failures of HTML since its birth has been the lack of a standard means to express math expressions. Embedding them as images has been a common work-around; including a textual alternative is a safe-guard. (Sorry, Dr. Knuth.)