 din       . .

 frame ---      . 
 instr ---  .

    ,    .

 exm1, exm2  studlit( ) 
     . 

   multi       
    .
   ex_snake.tex -     PostScript
   example_old.tex -   ,   
    TEX  ..

      ,    
   
\input{mondef}
\input{monogr}
  - 
\input{mondef}
\input{monog}

  :
\usepackage[T2A]{fontenc}
\usepackage[cp1251]{inputenc}
\usepackage[russian]{babel}

        AMS:
\usepackage{amssymb}
\usepackage{amsmath}
\usepackage{amsthm}
       
  ,    .

     ,   -    .