On Tuesday, March 22, 2011 10:56:45 PM Igor Chudov did opine: > On Tue, Mar 22, 2011 at 8:58 PM, gene heskett <[email protected]> wrote: > > Greetings all; > > > > A couple of question regarding the math used in gcode handling. > > > > 1. What is the best way to turn a positive value into its exact > > negative? I find constructs like g0x-[#<_var>] are rejected out of > > hand, but its seems like there ought to be a better way than > > #<_var-minus> = [[#<_var>] - [[#<_var>] + [#<_var>]]] > > On a separate, confusing the issue line. > > G0 X[-#<var>] > Humm, seems I tried that, but not recently (since 2.4.6 anyway) so I'll give it a shot tomorrow. Thanks Igor.
> Big expressions can go into [ ... ]. And getting the proper evaluation order can stack them up higher than a stack of plates at a steakhouse buffett. Major PIMA for this somewhat mathematically challenged old fart. > > > I received that die grinder from HF today, finished the mounting on my > > mill, and have shaved the end of a short stick of white ash just to > > see what sort of a finish it will leave on the shoulders of a tenon > > carved with it. Absolutely beautiful, I could silver the end of the > > stick and use it for a shaving mirror, not a single loose hair of > > wood anyplace on any edge, even if the cut is a dig cut, but I am > > using climb because the bits edge at the point of the cut, is cutting > > into the wood, not out of it. I'll have a few pix added to my emc > > subpage by tomorrow I hope. Actually they s/b there now, but I think firefox's cache is playing with my mind. I use jigl.pl to generate those picture pages, and I can't get it to show me but 24 of the 51 thats there when I look at it with my copy of FF. I have some others checking it & should know if FF is lying to me shortly. I found it, the main page link was one level too deep. Now I see pix that need moved as they don't belong in that tree. Tomorrow if the weather turns crappy as they are saying it will. Anyway, <http://gene.homelinux.net:85/gene/emc> new toy is left pix in next to the last row. > > Thanks for any enlightenment. > > > > -- > > Cheers, Gene > > > > "There are four boxes to be used in defense of liberty: > > soap, ballot, jury, and ammo. Please use in that order." > > > > -Ed Howdershelt (Author) > > <http://tinyurl.com/ddg5bz> > > <http://www.cantrip.org/gatto.html> > > Your code should be more efficient! > > > > > > ---------------------------------------------------------------------- > > -------- Enable your software for Intel(R) Active Management > > Technology to meet the growing manageability and security demands of > > your customers. Businesses are taking advantage of Intel(R) vPro (TM) > > technology - will your software be a part of the solution? Download > > the Intel(R) Manageability Checker today! > > http://p.sf.net/sfu/intel-dev2devmar > > _______________________________________________ > > Emc-users mailing list > > [email protected] > > https://lists.sourceforge.net/lists/listinfo/emc-users > > ------------------------------------------------------------------------ > ------ Enable your software for Intel(R) Active Management Technology to > meet the growing manageability and security demands of your customers. > Businesses are taking advantage of Intel(R) vPro (TM) technology - will > your software be a part of the solution? Download the Intel(R) > Manageability Checker today! http://p.sf.net/sfu/intel-dev2devmar > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users -- Cheers, Gene "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) <http://tinyurl.com/ddg5bz> <http://www.cantrip.org/gatto.html> Q: How many IBM 370's does it take to execute a job? A: Four, three to hold it down, and one to rip its head off. ------------------------------------------------------------------------------ Enable your software for Intel(R) Active Management Technology to meet the growing manageability and security demands of your customers. Businesses are taking advantage of Intel(R) vPro (TM) technology - will your software be a part of the solution? Download the Intel(R) Manageability Checker today! http://p.sf.net/sfu/intel-dev2devmar _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
