... so were those explicit verbs that Raul and I developed from Ric’s pmt irrelevant? Raul gave application-relevant names such as principal, to intermediate results, in a fully “explicated” form, while I was less ambitious, assigning a what-it-does name, incrtot for (1+r)^t .
I just don’t understand what you want, Linda. Perhaps you’re a Socrates, posing questions for our enlightenment... Platonic greetings, Mike Sent from my iPad > On 12 Sep 2018, at 03:45, Linda Alvord <[email protected]> wrote: > > Jim, > I just translated that old pmt into an explicit version which contains y and > is monadic. As you learn the J vocabulary this will become readable. J is > executed from right to left so start from 1{y. > > PMT=: 13 :'(2}y)*((0{y) % 1200) * ((1 + (0{y) % 1200) ^ 1{y) % ((1 + (0{y) % > 1200) ^ 1{y) - 1' > > A=:5.75 240 12500 > PMT A > 87.7604 > > If it can, 13 : will reply in J's tacit language. PMT returns a tacit > response. > > > 2} * (1200 %~ 0 { ]) * ((1 + 1200 %~ 0 { ]) ^ 1 { ]) % 1 -~ (1 + 1200 %~ 0 { > ]) ^ 1 { ] > > > Notice %~ , it shows you that your explicit order could be improved. Now, > chop it into words. This is "J speak" > > ;:'2} * (1200 %~ 0 { ]) * ((1 + 1200 %~ 0 { ]) ^ 1 { ]) % 1 -~ (1 + 1200 %~ > 0 { ]) ^ 1 { ]' > ┌─┬─┬─┬─┬────┬─┬─┬─┬─┬─┬─┬─┬─┬─┬─┬─┬────┬─┬─┬─┬─┬─┬─┬─┬─┬─┬─┬─┬─┬─┬─┬─┬─┬─┬─┬────┬─┬─┬─┬─┬─┬─┬─┬─┬─┬─┐ > │2│}│*│(│1200│%│~│0│{│]│)│*│(│(│1│+│1200│%│~│0│{│]│)│^│1│{│]│)│%│1│-│~│(│1│+│1200│%│~│0│{│]│)│^│1│{│]│ > └─┴─┴─┴─┴────┴─┴─┴─┴─┴─┴─┴─┴─┴─┴─┴─┴────┴─┴─┴─┴─┴─┴─┴─┴─┴─┴─┴─┴─┴─┴─┴─┴─┴─┴─┴────┴─┴─┴─┴─┴─┴─┴─┴─┴─┴─┘ > If you work on a laptop you could read all this much better. As you study it > from right to left you will be able to tell where y belongs. Try this on a > dyadic function to see some differences. > > Linda > > -----Original Message----- > From: Programming <[email protected]> On Behalf Of > 'Jim Russell' via Programming > Sent: Tuesday, September 11, 2018 4:04 PM > To: [email protected] > Subject: Re: [Jprogramming] [Jpr > > I for one would love to see that (a clear description of how 13 : converts > explicit expressions to tacit) but I can’t promise that I would understand > it. > >> On Sep 11, 2018, at 1:05 PM, Raul Miller <[email protected]> wrote: >> >> a clear description of how 13 : converts explicit expressions to tacit. > > ---------------------------------------------------------------------- > For information about J forums see > https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.jsoftware.com%2Fforums.htm&data=02%7C01%7C%7C063bf3d8d5204562162908d61821bd09%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C636722930512618244&sdata=WRyQaVccMdvjcVGnMGvkjhfLDRE8XTOKcaqIsIvJC5Y%3D&reserved=0 > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
