[fpc-devel] Programming in Pascal .

J. Gareth Moreton gareth at moreton-family.com
Wed Mar 27 09:56:11 CET 2019

 Hello there Yves Boudeville,
 That's great to hear that Pascal has served you well with scientific
programming and the like.  I confess unfortunately I'm not familiar with
the units, but I will be happy to see if I can help optimise them in
places, either by writing platform-specific assembly language (with a
Pascal fallback if it's not Intel x86_64), kind of my speciality, or
compiler improvements.
 Are you sure that PtcGraph isn't stil available? I just checked with the
development version and it seems to be present.
 Gareth aka Kit.

 On Tue 26/03/19 08:07 , Yves Boudeville Yves.Boudeville at free.fr sent:
 I am asking questions on the art of scientific computing from 1966. 
 After Algol and Modula, 
 the U.C.S.D. Pascal system has been the touchstone of the scientific 
 computing. This has 
 been devoted by Niklaus Wirth book and applied in Borland TP7 software. 
 The only thing 
 scientists need is a strongly typed language with pixel access on a 
 single graphical windows. 
  This is needed, for instance, by Monte-Carlo simulations. We need the 
 full power of the 
 computer with the pixel definition of the result because the eyes are 
 the  best investigators 
 for scientific bugs. TP7 with graph was the best tool for that. For less 
 approaches, like 3D models it was sufficient to use Borland Delphi-7. 
 Now, in 2019, it was 
 possible to use FPC compiler with Fp-IDE to make in laboratories good 
 simulations of 
 scientific equations, very clean in FPC Pascal, with the Graphical tools 
 PtcGraph, PtcCrt, etc 
 ... It is far more useful than old Seymour Cray Fortran or C// on 
 Connection Machines CM1 / CM2 
 of Hillis : Theses need M.I.T. gourous in big National Laboratories. 
 Some years ago, it was possible with the good job of Nikolay Nikolov on  
 Ptc Pascal Units, to do 
 clean-proof use of computer to visualize physics in HDMI 1920 x 1080 x 
 65536c under Windows. 
 With lesser resolution, a work in Pascal was running without 
 adding/changing a word under 
 Windows_Intel / Ubuntu_Linux / or Raspbian_Raspberry Rpi3. Now, for 
 scientific use, it is not 
 possible because  ptcgraph etc... are not included in latest versions, 
 for instance of Raspbian. 
 So, in order to use software in Physics, we are compelled use old 
 versions of OS  2.6.4 Fpc 
 systems instead of 3.0.0 on /usr/lib/fpc to use our programs. It is a 
 big problem for us because 
 we are interested by easy Pascal simulations of physics and we are 
 newbie in systems. Will it be 
 an hope to have again under Fpc : PtcGraph, PtcCrt, PtcMouse... to do 
 good job in physics ? 

 Friendly Yours. 

 P.S. I beg your pardon for my desesperately rusty English language 
 because Classrooms are very 

 far from me in time ... ( I am 73 ) . 

 I Mr ou Mme BOUDEVILLE, Yves I 
 I "Le Jardin des Arts", 28, Rue Leon FABRE I 
 I Tel Domicile : (Repondeur) I 
 I Courriel: Yves.Boudeville at free.fr [1] I 

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