-The default value is calculated automatically (for~example, about~0.924865 when
- the \Pkg{ltjsarticle} class is used).
+The default value is determined as follows:
+ \begin{itemize}
+ \item The value of \cs{Cjascale} is used, if this control sequence is already defined.
+ \item It is calculated automatically from the current Japanese font at the loading of the
+ package, if \cs{Cjascale} is not defined.
+ \end{itemize}
+\cs{Cjascale} is defined in \Pkg{ltjclasses} and \Pkg{ltjsclasses}.