I was trying to find some information on how best to
control the appearance of long equations. When expressions
get too long for an equation to fit on a single line then
texmacs' default line breaking can look pretty poor.

I tried adding \line-break inside the math environment and
sometimes that helps and sometimes it does not (I understand
that \line-break is only a hint to texmacs).

Another way I have dealt with very long equations is doing
the line breaking manually by breaking a long _expression_ into pieces and placing the pieces over multiple lines on the rhs
of an equation array. But this is cumbersome and breaks
texmacs' semantic editing capabilities (eg, I need to use
left and right delimiters instead of parentheses or braces).

I wonder if other users have found better ways to control
how long equations appear in texmacs?

Ralf