Right: the year 1941 was in the twentieth century. This dating system dates back to the romans, and pre-dates the invention of the zero.
Thanks, — Raul On Wednesday, May 30, 2018, 'Bo Jacoby' via Chat <[email protected]> wrote: > Are you missing the point? The ordinal numbers used for counting centuries > and years are 1. 2. 3. and so on. No such thing as a zeroth century. > 0-origin indexing is useful, but the numbers are not ordinal. The degree of > a polynomial is the maximum exponent, and the exponents are cardinal > numbers. So "second degree" is bad language for degree 2. > > Den 0:59 onsdag den 30. maj 2018 skrev Jose Mario Quintana < > [email protected]>: > > > This nice day, May 29, 2018, according to some Day Keepers, is 13.0.5.9.5. > That is right, they have been counting days avoiding inevitable complicated > correction rules when trying to synchronize years and days (KISS). (Yet, > the date 13.0.0.0.0 corresponded to December 21, 2012.) > > > On Tue, May 29, 2018 at 9:16 AM, Raul Miller <[email protected]> > wrote: > > > Clearly, this year is 10 Prairial CCXXVI > > > > Well, unless you are using the Hebrew calendar - then it’s the year 5778. > > > > Etc... > > > > (Translation: the answer here depends on your religious beliefs) > > > > I hope this helps. > > > > Have a nice day. > > > > Thanks, > > > > — > > Raul > > > > On Tuesday, May 29, 2018, 'Bo Jacoby' via Chat <[email protected]> > wrote: > > > > > Do we agree that this year, AD 2018, is the eighth year of the of the > > > second decade of the first century of the third millenium? Or do you > > > consider it to be the seventh year of the first decade of the zeroth > > > century of the second millenium? The time passed until year 2018 are 2 > > > millenia, 0 centuries, 1 decade and 7 years, but those are not ordinal > > > numbers. > > > > > > Den 3:41 tirsdag den 29. maj 2018 skrev Jose Mario Quintana < > > > [email protected]>: > > > > > > > > > Personally, I feel more comfortable with the usual mathematical > > > perspective: 0 is the first ordinal, 1 is the second, etc. Moreover, > > from > > > this perspective (as far as I remember), there is no difference between > > > finite cardinal and ordinal numbers. > > > > > > ] A=. 'First' ; 'Second' ; 'Third' ; 'Fourth' ; 'Fifth' > > > ┌─────┬──────┬─────┬──────┬─────┐ > > > │First│Second│Third│Fourth│Fifth│ > > > └─────┴──────┴─────┴──────┴─────┘ > > > 0 { A > > > ┌─────┐ > > > │First│ > > > └─────┘ > > > 1 2 3 4 { A > > > ┌──────┬─────┬──────┬─────┐ > > > │Second│Third│Fourth│Fifth│ > > > └──────┴─────┴──────┴─────┘ > > > > > > > > > On Sat, May 26, 2018 at 12:38 AM, 'Bo Jacoby' via Chat < > > [email protected] > > > > > > > wrote: > > > > > > > Ordinal numbers are not considered in J. The expression 2{y should > not > > be > > > > read as "take the second element of y" but as "skip 2 elements and > take > > > the > > > > left element of y". > > > > Ordinal Fractions use one-digit ordinal numbers for indexing. There > are > > > > but nine one-digit ordinal numbers: 1 2 3 4 5 6 7 8 9, because 0 is > not > > > an > > > > ordinal number, and 10 is not a one-digit number. Digit 0 - not being > > an > > > > ordinal number - is available to indicate empty digit positions. > > > > > > > > Example: The roman numeral MMLIII means (M*2)+(L*1)+(I*3) . It can be > > > > encoded (arabic style) without delimiting spaces: 2001003 . The > zeroes > > > > in 2001003 mean that terms involving D C X and V are omitted. > Likewise, > > > the > > > > ordinal fraction 2001003 means (M=2)*.(L=1)*.(I=3). The zeroes > > > > in 2001003 mean that conditions involving D C X and V are omitted. > > > > Thanks. > > > > Bo. > > > > Den 0:06 lørdag den 26. maj 2018 skrev Jose Mario Quintana < > > > > [email protected]>: > > > > > > > > > > > > Stopwatches and odometers can also be used to label time intervals > to > > > > associate them to events occurring in those intervals and keep track > of > > > the > > > > order in which they take place. In fact, conceptual odometers > counting > > > > days have been used at least for two millennia and detecting a day > > when a > > > > big cycle ends and the day when the next begins is extremely hard to > > > miss. > > > > > > > > In addition, by starting at 0 when labelling sequential objects the > > > offset > > > > from the anchor is immediately evident; for instance, if the buttons > in > > > an > > > > elevator for the floors of the building are labelled: *G (0), 1 ,2, > ... > > > and > > > > I pressed 6, to get to the floor where I am then I know that if a > fire > > > > alarm goes off I will go down the stairs 6 floors and I will be on > the > > > > ground floor. However, if the fire alarm would go off right now in > my > > > > building, ... I would do nothing because there are too many damn > false > > > > alarms! > > > > > > > > In the context of the common English language, there is little doubt > > that > > > > the ordinal numbers are 1st, 2nd, 3rd, 4th, ... However, in another > > > > context (see, https://en.wikipedia.org/wiki/Ordinal_number ) they > are > > 0, > > > > 1, > > > > 2, ... (, ω, and so on). > > > > > > > > Personally, I have no problem relating both by saying 0 is the 1st > > > ordinal > > > > number, 1 is the 2nd ordinal, 2 is the 3rd ordinal, 3 is the 4th > > ordinal, > > > > etc. > > > > > > > > I understand that there could be instances where starting from 1 > might > > be > > > > more desirable; apparently, that is the case for your Ordinal > Fractions > > > > where the digit 0 is used for a special purpose (although I cannot > see > > > the > > > > difficulty in starting from 0 and using, say, _ for the special > > purpose). > > > > > > > > > > > > On Fri, May 25, 2018 at 5:52 PM, Jose Mario Quintana < > > > > [email protected]> wrote: > > > > > > > > > :D > > > > > > > > > > It seems that these people like complications. They are not very > > smart > > > > or > > > > > maybe they are... Job security! > > > > > > > > > > > > > > > On Wed, May 23, 2018 at 7:14 PM, David Lambert < > [email protected] > > > > > > > > wrote: > > > > > > > > > >> Our credit union had used employee numbers for account numbers. > But > > > ran > > > > >> out of 5 digit numbers. Did they change our accounts to 0abcde? > > No! > > > > >> They > > > > >> multiplied 10 leaving us as abcde0. > > > > >> ------------------------------------------------------------ > > > ---------- > > > > >> For information about J forums see http://www.jsoftware.com/ > > > forums.htm > > > > > > > > > > > > > > > > > > > ------------------------------------------------------------ > ---------- > > > > For information about J forums see http://www.jsoftware.com/ > forums.htm > > > > > > > > > > > > ------------------------------------------------------------ > ---------- > > > > For information about J forums see http://www.jsoftware.com/ > forums.htm > > > > > > > ---------------------------------------------------------------------- > > > For information about J forums see http://www.jsoftware.com/forums.htm > > > > > > > > > ---------------------------------------------------------------------- > > > For information about J forums see http://www.jsoftware.com/forums.htm > > ---------------------------------------------------------------------- > > For information about J forums see http://www.jsoftware.com/forums.htm > > > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm > > > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
