Roy informed me that because of computer problems and moving house, he will not be able to post until mid-September. I will try to keep up in the interim. I have a few posts that I will do as soon as I can squeeze out a few minutes. (Whoever said that there would be more free time after I retired was quite obviously wrong.)
If any of you have a Machin question or two that I might be able to answer, please put it in the comments.
We don't say it enough - thanks to all our readers and commenters. We appreciate your interest and participation.