I'm not sure I deserve credit for just thinking about an answer, but I'll take it!
On Wed, Sep 23, 2015 at 9:30 PM, philip hunt (usa) <philip.h...@usa.net> wrote: > thanks Devon, Henry and Rich > > I guess I should have discovered that myself (float representation etc.) > especially as synchronicity would have it, I was just working on > compressing 32bit floats in our product here at work (for a logging values > over 10 years of data collection) > > Makes good sense now thank you guys! > > > > > On 23.09.2015 7:26 PM, Henry Rich wrote: > >> $ ": 123 >> 3 >> >> 123 is numeric. The interpreter picks the precision: integer here. >> >> ": converts to displayable form (characters) >> >> $ counts the characters. >> >> >> 1234567890123456789 >> >> 1234567890123456789 >> >> >> This still fits in a 64-bit signed integer, so the interpreter picks >> integer precision >> >> $ ": 1234567890123456789 >> >> 19 >> >> >> 12345678901234567890 >> >> 1.23457e19 >> >> Now the interpreter picks floating precision, which displays in >> scientific notation >> >> $ ": 12345678901234567890 >> >> 10 >> >> >> 12345678901234567890x >> >> 12345678901234567890 >> >> You are specifying extended precision, which displays in full >> >> $ ": 12345678901234567890x >> >> 20 >> >> Henry Rich >> >> >> >> >> >> On 9/23/2015 6:26 PM, robert therriault wrote: >> >>> Nice one Phil, >>> >>> Does this help? >>> >>> $":12345678901234567890 >>> 10 >>> ":12345678901234567890 >>> 1.23457e19 >>> ":1234567890123456789 >>> 1234567890123456789 >>> ":12345678901234567890x NB. Extended type >>> 12345678901234567890 >>> >>> There really are no silly questions when you are learning this language. >>> Welcome! >>> >>> Cheers, bob >>> >>> >>> On Sep 23, 2015, at 3:19 PM, Philip Hunt (USA) <philip.h...@usa.net> >>> wrote: >>> >>> $":12345678901234567890 >>>> >>> ---------------------------------------------------------------------- >>> 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 > -- Devon McCormick, CFA ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
