Very good! 2011/4/30 Ric Sherlock <[email protected]>
> If you're sure a is pure 01s then > b=: '1'=a > is probably best. > > > -----Original Message----- > From: Björn Helgason <[email protected]> > Sent: Saturday, 30 April 2011 23:27 > To: Programming forum <[email protected]> > Subject: Re: [Jprogramming] sum of digits in a number > > I anything to prefer if the digits are pure 0/1 ? > > > Working with QR codes you may get strings like > > a=.'1111111011101100011100010000110100100100...... > $a > 4829 > > b=. 1j1 # a > > $b > 9658 > > b > 1 1 1 1 1 1 1 0 1 1 1 0 1 1 0 0 0 1 1 1 0 0 0 1 0 > > c=. "."0 b > $c > 9658 1 > > > > 2011/4/29 Roger Hui <[email protected]> > > > Aha! A dual: > > > > 1j1&#&.": 12345 > > 1 2 3 4 5 > > > > The fastest expression for obtaining the decimal digits is: > > http://www.jsoftware.com/help/release/digits10.htm > > > > 0"."0@": 12345 > > 1 2 3 4 5 > > > > > > > > ----- Original Message ----- > > From: Devon McCormick <[email protected]> > > Date: Friday, April 29, 2011 5:48 > > Subject: Re: [Jprogramming] sum of digits in a number > > To: Programming forum <[email protected]> > > > > > You need to turn the result back into numbers after doing the > > > "filled copy" > > > (1j1#): > > > > > > ".1j1#":12345 > > > 1 2 3 4 5 > > > +/".1j1#":12345 > > > 15 > > > > > > 2011/4/29 Björn Helgason <[email protected]> > > > > > > > 1j1#":12345 > > > > > > > > 2011/4/29 bill lam <[email protected]> > > > > > > > > > one way is > > > > > ]a=. ".,.":12345 > > > > > 1 2 3 4 5 > > > > > +/a > > > > > 15 > > > > > > > > > > project euler? > > > > > > > > > > Птн, 29 Апр 2011, Daniel Roe писал(а): > > > > > > > > > > > > If we add up the digits of the number 12345 we get > > > 1+2+3+4+5 = 15. > > > > > > I want to be able to do math upon the individual digits. > > > > > > How would I do that in J? > > > > ---------------------------------------------------------------------- > > For information about J forums see http://www.jsoftware.com/forums.htm > > > > > > -- > Björn Helgason, Verkfræðingur > Fornustekkum II > 781 Hornafirði, > t-póst: [email protected] > gsm: +3546985532 > twitter: @flugfiskur > http://groups.google.com/group/J-Programming > > > Tæknikunnátta höndlar hið flókna, sköpunargáfa er meistari einfaldleikans > > góður kennari getur stigið á tær án þess að glansinn fari af skónum > /|_ .-----------------------------------. > ,' .\ / | Með léttri lund verður | > ,--' _,' | Dagurinn í dag | > / / | Enn betri en gærdagurinn | > ( -. | `-----------------------------------' > | ) | (\_ _/) > (`-. '--.) (='.'=) ♖♘♗♕♔♙ > `. )----' (")_(") ☃☠ > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm > -- Björn Helgason, Verkfræðingur Fornustekkum II 781 Hornafirði, t-póst: [email protected] gsm: +3546985532 twitter: @flugfiskur http://groups.google.com/group/J-Programming Tæknikunnátta höndlar hið flókna, sköpunargáfa er meistari einfaldleikans góður kennari getur stigið á tær án þess að glansinn fari af skónum /|_ .-----------------------------------. ,' .\ / | Með léttri lund verður | ,--' _,' | Dagurinn í dag | / / | Enn betri en gærdagurinn | ( -. | `-----------------------------------' | ) | (\_ _/) (`-. '--.) (='.'=) ♖♘♗♕♔♙ `. )----' (")_(") ☃☠ ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
