J904-beta-i is available for android. verify gmp is working by executing a simple sentence eg 2x * 2
eformat error message working by 1+'a' On Wed, Dec 14, 2022 at 1:00 AM Eric Iverson <eric.b.iver...@gmail.com> wrote: > J904-beta-i is available for windows/linux/mac/pi. > > Please install/upgrade and use it so that the release after the beta cycle > is as stable as can be. > > Usually we would end the beta cycle near year end and have a stable > release. Multi-threading was ready, but there were a few things we wanted > to get in the release and this means we will extend the beta cycle into the > new year as required. > > The JE now uses GMP (GNU Multiple Precision Arithmetic Library) for > arbitrary precision arithmetic, operating on signed integers, rational > numbers, and floating-point numbers. This is a replacement for the previous > JE native support and is functionally equivalent, but MUCH faster. > > a =. 2 ^ 100000x > 6!:2 'a*a' NB. time with GMP - 200 times faster > > JE standard error messages are now enhanced by J code > (~addons/dev/eformat/eformat.ijs). > > i.'a' > |domain error, executing monad i. > |y has nonnumeric type (character) > | i.'a' > > The stable release will be in the new year as soon as the betas settle > down. > > *** 904 beta upgrade - extra steps to get the GMP shared library > 1. start J 904 > load 'pacman' > install 'base library' NB. get pacman changes for installing GMP > > 2. restart J 904 > load 'pacman' > install 'gmp' NB. install GMP shared library > 'upgrade' jpkg 'jengine' > > 3. restart J 904 > JVERSION NB. verify beta-i > 1000x NB. verify gmp works > > *** 904 beta install > browse: code.jsoftware.com/wiki/System/Installation/J904/Zips > and follow instructions for your platform > > *** GMP - https://gmplib.org/#WHAT > What is GMP? > > GMP is a free library for arbitrary precision arithmetic, operating on > signed integers, rational numbers, and floating-point numbers. There is no > practical limit to the precision except the ones implied by the available > memory in the machine GMP runs on. GMP has a rich set of functions, and the > functions have a regular interface. > > The main target applications for GMP are cryptography applications and > research, Internet security applications, algebra systems, computational > algebra research, etc. > > GMP is carefully designed to be as fast as possible, both for small > operands and for huge operands. The speed is achieved by using fullwords as > the basic arithmetic type, by using fast algorithms, with highly optimised > assembly code for the most common inner loops for a lot of CPUs, and by a > general emphasis on speed. > ... > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm > ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
