Guttorm Vik produced two versions of a BASIC manual, mainly based on the output from the HELP command. Justin Fletcher had begun a new, fuller version, but had to give it up owing to pressure of work. I have taken over, and pretty well restarted, with the aim of producing a fairly comprehensive guide but retaining the quick look-up. This now incorporates the material from another manual I was writing, which brought together lots of background information about BASIC.
This is still in development, but without feedback I am not doing this very quickly, so I would welcome comments, and information.
Basic manual 3.51 zipfile
Download old versions:
Basic manual 1.00 zipfile
Basic manual 2.00 zipfile