From: pcdhSpamMeSenseless@electrooptical.net   
      
   john larkin  wrote:   
   > On Tue, 3 Feb 2026 16:23:54 -0000 (UTC), Phil Hobbs   
   >  wrote:   
   >   
   >> john larkin  wrote:   
   >>> On Mon, 2 Feb 2026 18:29:58 -0000 (UTC), Phil Hobbs   
   >>>  wrote:   
   >>>   
   >>>> john larkin  wrote:   
   >>>>> On Sun, 01 Feb 2026 11:58:27 GMT, Jan Panteltje    
   >>>>> wrote:   
   >>>>>   
   >>>>>>> john larkin wrote:   
   >>>>>>>> On Thu, 29 Jan 2026 14:09:28 GMT, Jan Panteltje    
   >>>>>>> wrote:   
   >>>>>>>   
   >>>>>>>>> john larkin wrote:   
   >>>>>>>>>   
   >>>>>>>>> Approximately 2% of all Russian men aged 20-50 may have been killed   
   or   
   >>>>>>>>> seriously wounded by Ukrainians, many with smart drones.   
   >>>>>>>>>   
   >>>>>>>>> The r/u casuality ratio is over 2:1 and likely increasing.   
   >>>>>>>>>   
   >>>>>>>>> https://en.wikipedia.org/wiki/Russian_emigration_durin   
   _the_Russo-Ukrainian_war_   
   >>>>>>>>>   
   >>>>>>>>>   
   >>>>>>>>> Why dio so many people sympathize with genocidal thugs?   
   >>>>>>>>   
   >>>>>>>> tramp is, among many more bad and evil things, a genocidel thug who   
   >>>>>>>> killed thousands in Gaza by supplying arms to the religious   
   >>>>>>>> fanatic YouWitz sect   
   >>>>>>>> Killed people in Venezuela   
   >>>>>>>> killed people in boats   
   >>>>>>>> Killed US people in Minnesota   
   >>>>>>>> Probably had Epstein killed so he would not talk about his sex   
   >>>>>>>>   
   >>>>>>>> He wants to do the same in Iran now, wants to kill Cubans, invade   
   >>>>>>>> Cuba, steals oil just like double you you bushman did in   
   >>>>>>>> Iraq   
   >>>>>>>> What a bunch of crap 'merrica has become   
   >>>>>>>> World may unload its radioactive waste on those divided states any   
   >>>>>>>> time now, the doomsday clock is making noises.   
   >>>>>>>> tramp ape has no respect for anything but maybe a gun on - or a bullet   
   >>>>>>>> through the empty bubble mounted above his shoulders.   
   >>>>>>>>   
   >>>>>>>> ego maniac nutcase he is.   
   >>>>>>>>   
   >>>>>>>> And the more stupid the 'leader' the more the simple minded follow   
   >>>>>>>> him: Youws and 'Adam did it with Eve' reciters.   
   >>>>>>>   
   >>>>>>> The best thing Cuba could do for its people is start a war with the US   
   >>>>>>> and lose. Of course,  the communist party is dumb, but not that dumb.   
   >>>>>>>   
   >>>>>>>   
   >>>>>>> John Larkin   
   >>>>>>> Highland Tech Glen Canyon Design Center   
   >>>>>>> Lunatic Fringe Electronics   
   >>>>>>   
   >>>>>> YOU DO NOT HAVE TO CONFIRM YOU ARE BRAINDEAD   
   >>>>>   
   >>>>> Has your keyboard died? Caps lock stuck? Or still using a Teletype?   
   >>>>>   
   >>>>   
   >>>>>   
   >>>>   
   >>>> I mean, it worked for Grand Fenwick.   
   >>>>   
   >>>> Cheers   
   >>>>   
   >>>> Phil Hobbs   
   >>>   
   >>> You youngsters can't remember the joy of getting a high speed paper   
   >>> tape reader.   
   >>>   
   >>>   
   >>> John Larkin   
   >>> Highland Tech Glen Canyon Design Center   
   >>> Lunatic Fringe Electronics   
   >>>   
   >>   
   >> Well, I did use one, writing a program for an original Data General Nova   
   >> for an undergrad physics lab, circa 1978   
   >   
   > What language?   
   >   
   Fortran, iirc. To save machine time, Wolf Breuer The Lab Guy set it up to   
   run split core, so that we could run two or maybe four people’s programs at   
   once, and I expect that having multiple copies of the Basic interpreter   
   probably wouldn’t fit in RAM.   
   >   
   > None of the minicomputer companies survived.   
      
   Well, DEC became part of Compaq, and then the Fiorina HP, which if you call   
   that survival.   
      
   >   
   > I had a PDP-8 (4K words of 12-bit core memory) that ran Focal, an   
   > intrepretive language. I used it to simulate the throttle control and   
   > propulsion system, including hull dynamics, of the 32,000 horsepower   
   > LASH ships. I plotted the step responses on the Teletype. We showed it   
   > to the owners and got the job.   
   >   
   > Other engineers said that I couldn't use simple rectangular   
   > integration, that I had to use some runga-kuta math or something. But   
   > the elements of the control system were mostly unilateral, and simple   
   > integration will even work in a circuit if the steps are small.   
      
   SPICE uses trapezoidal, which is the same order as rectangular.   
      
   But the advice wasn’t altogether stupid. The usual fourth-order Runge-Kutta   
   algorithm has faster convergence on smooth solutions, is pretty simple to   
   code, and is self-starting like rectangular.   
      
   Its main warts are that it’s slower than predictor-corrector or   
   Bulirsch-Stoer, and that it supplies no internal error estimate.  Sixth and   
   higher orders do supply that, but I’ve never coded them.   
      
   Cheers   
      
   Phil Hobbs   
      
   --   
   Dr Philip C D Hobbs  Principal Consultant  ElectroOptical Innovations LLC /   
   Hobbs ElectroOptics  Optics, Electro-optics, Photonics, Analog Electronics   
      
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