Eikonal Blog



Filed under: infosec, tools — Tags: — sandokan65 @ 23:34

Psychodelic rock from 1970s









Related at this blog: Electronic Music – https://eikonal.wordpress.com/2011/04/25/electronic-music/ | Music scores, tabs, … – https://eikonal.wordpress.com/2011/02/23/music-scores-tabs/ | Gypsy music – https://eikonal.wordpress.com/2011/01/05/gypsy-music/ | Streaming and other free music online – https://eikonal.wordpress.com/2010/01/04/streaming-and-other-free-music-online/

Cygwin stuff

Filed under: cygwin, unix, windows — Tags: , , , , , — sandokan65 @ 15:38

Various Cygwin links

Portable Cygwin


Setting effective HOME to your Windows “My Documents” folder.

  1. Start a Cygwin shell
  2. You should be located in your default directory which inside Cygwin looks like /home/thisuser, but from the Windows standpoint could be something like c:\cygwin\home\thisuser.
  3. Type ln -s /cygdrive/c/Documents and Settings/thisuser/My Documents/ ./docs
  4. Edit .profile and .bashrc to put at their ends following lines:
      export HOME=./docs
      cd $HOME
  5. that is it. Restart Cygwin. You should now be in the /home/thisuser/docs/ which is the same place as Windows’ c:\Documents and Settings\thisuser\My Documents/

Related: MS Windows Registry transversal by Cygwin – https://eikonal.wordpress.com/2011/03/01/registry-transversal-by-cygwin | Unix tricks – https://eikonal.wordpress.com/2011/02/15/unix-tricks/

Book: “Alternate Realities: Mathematical Models of Nature and Man”

Filed under: books, complexity, mathematics — sandokan65 @ 15:17

“Alternate Realities: Mathematical Models of Nature and Man” by John L. Casti

Alternate Realities

Recently I have re-read this book 15 years after the first reading. It covers various topics from definition of complexity (as a measure of surprise/difference between the anticipated and real outputs of the system), building mathematical model generating predetermined series of outputs, introduction to theory of catastrophes, cellular automata, etc.

Book: Linear Structures

Filed under: books, mathematics — sandokan65 @ 15:13

“Linear Structures” (Charles Griffin Series-Griffin’s Statistical Monographs, No 42) by Jan R. Magnus

Impressive book on the generalized matrix inverses and so called L(linear) structures. I wish I had access to this book much earlier, it sheds the light on various questions/problems I have been working through last 20+ years. It is an absolutely recommendable book.

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