These pages will be devoted  to mathematical entertainment  mostly with USSR-made programmable calculators.  Also, here you can find several  application  programs  and games. Some programs are very well known  (see Links  section for similar ones  for TI  and  HP calculators),  while the others are quite exotic.  Many interesting applications of  a programmable calculator were found  by  readers  of  soviet  popular scientific journals such as "Nauka i Zhizn" ("Science and Life")  or  "Technika-molodezhi" ("Technology for the Youth"). I cannot  even  imagine  what  part  of  them  was  not  published  due  to the limited  printing possibilities.  Also,  there can  be a  number of  such  journal  published  "far away from Moscow".  Now I do not know much about them.  I  just  found a  journal  "Pionerija"  published in Kiev, Ukraine.

On  this site there  is  a  list  of  soviet  printed  sources  about programmable calculators.  If  your  paper  or  book is  not  listed  here,  you can let me revive it by sending me its output data by e-mail  bulatov@ipu.rssi.ru . Otherwise,  just  leave  a  message in  the Guestbook .

I am deeply grateful to Alexei Zhuravlev (Kiev, Ukraine) for his help with translation to Ukrainian language.  I am grateful to Andrew Davie (Australia) for his interest in my humble efforts.

The data below is organized into several sections ordered alphabetically.

• A problem about the torn book    This is an example of  mathematical entertainment with programmable calculator.
• Books and papers about calculators published in the Soviet Union  This is the only section that  is  not  translated  from  Russian  into English  or  Ukrainian.
• Cafe  Economical game.
• Fox hunt   Guessing game on a 10*10 board.
• Links
• Mastermind   Well known guessing game with numbers.  In Russia it is also known as "bulls" and "cows".
• My essai about soviet programmable calculators   My investigation of  subtle matters of how  a  soviet  programmable calculator operates.  Very different from the famous ERRORology by "Technika-Molodezhi".
• Random numbers  A collection of entertainments with random numbers.
• More sections will appear.

Sign Guest book    I would like to know how can I suit you in the best way.

View Guest book

 1999, Alexander Bulatov