-Here is an example for a multiline formula where the numbering was turned
- off for the second line:
+To get another subnumber instead of small Latin letters, insert this command
+ as TeX code after
+\series bold
+
+\backslash
+begin{subequations}
+\series default
+:
+\end_layout
+
+\begin_layout Standard
+
+\series bold
+
+\backslash
+renewcommand{
+\backslash
+theequation}{
+\backslash
+theparentequation -
+\backslash
+roman{equation}}
+\end_layout
+
+\begin_layout Standard
+
+\series bold
+
+\backslash
+theparentequation
+\series default
+ creates hereby the parent number and
+\series bold
+
+\backslash
+roman{equation}
+\series default
+ adds a small Roman number as subnumber.
+ For more information about the customization of the numbering, see
+\begin_inset CommandInset ref
+LatexCommand ref
+reference "subsec:Numbering-with-Roman"
+
+\end_inset
+
+.
+\end_layout
+
+\begin_layout Standard
+Here is an example for a multiline formula where the numbering is customized
+ and turned off for the second line: