Upload for Wednesday, ++

Rather than a separate file for Wednesday, I updated the "lecture 5" slideset:

• Same link, just overwritten; please reload.
  Expected to be updated after tomorrow with scans. It is Aud7, so I can write and use the docucam.
• Updates and bugfix in "Tuesday's" part largely indicated in magenta colour. Might be removed in the final version.
• New slides "early" in the document: 5 and 7 (example variations etc. mentioned in class). 
  New slides "with Tuesday material" later too, but I'll point that out in lecture.
• There might be (#¡è%&stupid) bugs here too, of course - especially considering the time of "day" I post this, but for it to work as "preview" you need to have it by Wednesday morning. 
• Wednesday will start where we left off Tuesday: the inverse. Slides 14 & 15 repeated, with a brief walkthrough slide 16 (which is rather a "see if you can follow this by yourselves afterwards" thing). Then a few things I had already prepared, and a couple of things you requested in class, and which I cooked together this afternoon.

And I posted a new problem document in Canvas, but this time it is not at the basic end.