f=.(^ ]) - +: newton=.- f % f"0 D.1
(newton^:_) 0 3 0.346323 2 NB. these are the two solutions Den fredag den 7. februar 2020 17.46.50 CET skrev Henry Rich <henryhr...@gmail.com>: t. has been removed from J9.01. Henry Rich On 2/7/2020 11:45 AM, Brian Schott wrote: > I am still having trouble with j9 relative to j8 as shown by the two > results below. > > ^ t. i.6 > |spelling error > | ^ t. i.6 > | ^ > JVERSION > Engine: j901/j64avx/darwin > Release-c: commercial/2020-01-11T12:22:31 > Library: 9.01.20 > Platform: Darwin 64 > Installer: J901 install > InstallPath: /users/brian/j901 > Contact: www.jsoftware.com > > ^ t. i. 6 > 1 1 0.5 0.166667 0.0416667 0.00833333 > JVERSION > Engine: j807/j64/darwin > Release-c: commercial/2019-02-24T10:50:40 > Library: 8.07.26 > Platform: Darwin 64 > Installer: J807 install > InstallPath: /users/brian/j64-807 > Contact: www.jsoftware.com > > On Fri, Feb 7, 2020 at 10:45 AM Roger Hui <rogerhui.can...@gmail.com> wrote: > >> For polynomial roots, see >> https://www.jsoftware.com/help/dictionary/samp27.htm for an alternative, >> Kerner's Method. It finds all the roots (approximations thereof, >> of course) all at once. Also described in Section 3.2 of Iverson's Turing >> Lecture https://www.jsoftware.com/papers/tot.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
