> I have just received Vector 24/1. They announce the book "At Play with > J", but immediately say that there will be a second revised edition "in > which the examples match the current version of J". > Would you start using any program in that conditions?
Millions of people are doing just that with Windows Vista ;-)) 2009/6/9 Alain Delmotte <[email protected]>: > Hi! > > I think there is a problem of updating the documentation. > For example, in Primer > - in tacit definition, still some x. and y. > - in tacit definition, at the end the discussion doesn't agree with the > screen captures > - the file system was modified in 6.02, but this is not in Primer, where > some examples do not work > (especially the "user" folder, problem with profile.ijs???) > - for component files "jsize f" returns 2176 and not 1408 > - the two GUI exercises give error with "wd" > > I know that maintaining documentation is almost as difficult as > maintaining the program itself, but if we want to have beginners use J, > the documentation should be straightforward. One has not to expect that > the user will correct the mistakes, he will just go and use something else. > > And what about the other books; User's manual, Introduction and > dictionary, Exploring math,...? > > I have just received Vector 24/1. They announce the book "At Play with > J", but immediately say that there will be a second revised edition "in > which the examples match the current version of J". > Would you start using any program in that conditions? > > Alain Delmotte > > Brian Schott a écrit : >> Don, >> >> Your fix helped, but I have another question. The definition of even >> seems to work your way and also if the definition is forced to be a >> dyadic definition by inserting a line ':' before the meat of the >> definition. That surprises me and I would like to understand that >> better. Also the definition of even works with u instead of x, but >> that does not surprise me. >> >> Regarding typo's there may be 2 more. >> a) I found the definition of the verb pol in the section 14.1, not 14.2. >> b) The experiment later on the page needed parentheses around 'e even' . >> >> >> >> >> >> > > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm > ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
