\contentsline {section}{Introduction}{2}{section*.2} \contentsline {section}{Installation}{2}{section*.3} \contentsline {subsection}{Directories and files}{3}{section*.4} \contentsline {section}{Program call}{3}{section*.5} \contentsline {subsection}{Options}{4}{section*.6} \contentsline {subsection}{``GUI'' (image file viewer)}{4}{section*.7} \contentsline {section}{The language}{4}{section*.8} \contentsline {subsection}{Global variables}{5}{section*.9} \contentsline {subsection}{Area sizes}{5}{section*.10} \contentsline {subsection}{Algorithm}{5}{section*.11} \contentsline {paragraph}{Commands}{7}{section*.12} \contentsline {subsection}{Controls}{8}{section*.13} \contentsline {subsection}{Macros}{8}{section*.14} \contentsline {subsection}{Comments}{8}{section*.15} \contentsline {subsection}{Emacs and {\color {blue}c\color {red}o\color {green}l\color {magenta}o\color {mygreen}r}}{8}{section*.16} \contentsline {section}{Help}{9}{section*.17} \contentsline {subsection}{Find a function}{9}{section*.18} \contentsline {subsection}{Debugging}{9}{section*.19} \contentsline {section}{Maintenance}{10}{section*.20} \contentsline {subsection}{Introduce a new function}{10}{section*.21} \contentsline {section}{An example}{11}{section*.22} \contentsline {section}{About}{11}{section*.23}