Category Archives: academics

memories

For some reason, all copies of an early variant of RTLinux called “myrtlinux” by its Italian “author” have disappeared from the web, but thanks to some archives we can find some fragments from old days.  For example, within a year or two of this email, the story had changed rather  dramatically. To me, there were [...]

R.L. Moore topologist and racist

If you read this down to the bottom you get a little hint, but you have to read something like this to understand what that little hint means. In graduate school she was very much alone, though she was a grader for an undergraduate course taken by Raymond Johnson. In her first class, she was [...]

limits of state diagrams

Here’s a graph of a simple state machine of somewhat under 512 states that models  a dumb fifo queue. The initial state is “e” for empty. We can append 1,2 or 3 to this queue and can delete the first in. To simplify suppose the alphabet is {0,1,2,3} where 0 means “dequeue”  and the others [...]