# [NTG-context] split long formula in two pages

Jeong Dal haksan at me.com
Mon Aug 27 03:47:49 CEST 2018

Dear all,

Sometimes, I wrote a long formula using
\startformula\startalign … \stopalign\stopformula.

In that case, if the remaining space in the current page is not enough to contain the formula, then it adds ‘page break’ and write the whole formula int the new page.

I have read a discussion to split long table in two pages. Is there a similar way for long formula?

Here is a minimal example.

\showframe
\starttext
\dorecurse{3}{\input knuth}

\startformula\startalign
\NC S_1 \NC = 1 = 1 + 0 \bigg( \frac{1}{2}\bigg),				\NR
\NC S_2 \NC = 1 + \frac{1}{2} = 1 + 1\bigg( \frac{1}{2}\bigg), 	\NR
\NC S_4 \NC = 1 + \frac{1}{2} + \bigg( \frac{1}{3} + \frac{1}{4} \bigg) \NR
\NC     \NC >  1 + \frac{1}{2} + \bigg( \frac{1}{4} + \frac{1}{4} \bigg)  = 1+ 2\bigg( \frac{1}{2}\bigg),			 \NR
\NC S_8 \NC = 1 + \frac{1}{2} + \bigg( \frac{1}{3} + \frac{1}{4} \bigg) + \bigg( \frac{1}{5} + \frac{1}{6} + \frac{1}{7} + \frac{1}{8} \bigg) \NR
\NC    \NC >  1 + \frac{1}{2} + \bigg( \frac{1}{4} + \frac{1}{4} \bigg) + \bigg( \frac{1}{8} + \frac{1}{8} + \frac{1}{8} + \frac{1}{8} \bigg) = 1 + 3\bigg( \frac{1}{2}\bigg)			\NR
\stopalign\stopformula

\stoptext