User:GrafZahl/AMS-style mathematics

Without equation number
blah blah $$a=b$$ blah blah

With equation number
blah blah (1) &thinsp;$$a=b$$ blah blah

(trying with tables)

blah blah

Without equation number
blah blah $$\begin{align}a&=b+c-d\\&\quad+e-f\\&=g+h\\&=i\end{align}$$ blah blah

With equation number
blah blah  (2) &thinsp;$$\begin{align}a&=b+c-d\\&\quad+e-f\\&=g+h\\&=i\end{align}$$ blah blah

(trying with tables)

blah blah