\chapter{υ‰΅‰ί “‰Βχ‰‘υ‰‚ύ ψρ \label{sourceA}}
’€ ώ‰ί •‰ƒ‰¨‰΄, υ‰΅‰ί “‰Βχ‰‘υ‰‚ώ‰ό  “‰Βύ •‰ƒ‰‘’ω¨‰‘₯ύ σ‰Ϊ‰€ώ‰΅‰έ ’쉃‰Υ, ώ‰γ‰€‰ό
σ‰Ϊ‰€ώ‰΅‰ή‰ό   ’€ κ‰Κ‰Ϋ \ref{alg} £ξ‰Β ͺ‰ΐ, “‰‚ € €κ‰΅‰‚ ¨‰΄ ‘‰ϋ‰ΐ υ‰ΐ.
ώ‰ί “‰Βχ‰‘υ‰‚ “‰‚ ¨‰‚ μ‰Ζ‰ή‰΄ ώ‰χ‰ƒ‰΄ \InE{}GEOMETRY\EnE{}, ώ‰χ‰ƒ‰΄ \InE{}GEODESIC\EnE{}, ψ υ‰΅‰ί “‰Βχ‰‘υ‰‚ 
“‰Βύ Ÿ‰‘σ‰΄ χ‰‘υ‰½‰ΐ’ —‰Φ‰Ζ‰ƒ‰έ“‰€‰ΐύ ͺ‰ΐω ¨‰΄. 

\section{ώ‰χ‰ƒ‰΄ \InE{}GEOMETRY\EnE{}}

% ’€ ώ‰ί›‰‘ μ‰Ζ‰ή‰΄ϋ‰‘ώ‰ό Ÿ‰Αι ͺ‰ΐω ¨‰΄.

\section{ώ‰χ‰ƒ‰΄ \InE{}GEODESIC\EnE{}}

% ’€ ώ‰ί›‰‘ μ‰Ζ‰ή‰΄ϋ‰‘ώ‰ό Ÿ‰Αι ͺ‰ΐω ¨‰΄.

\section{υ‰΅‰ί “‰Βχ‰‘υ‰‚ “‰Βύ Ÿ‰‘σ‰΄ χ‰‘υ‰½‰ΐ’}
\input{body}