Hello, the following example (based on http://wiki.contextgarden.net/Math/Display#Automatic_Sub-Formula_Numbering ): ---- \starttext \startsubformulas[eq:1] \placeformula[eq:1a] \startformula c^2 = a^2 + b^2 \stopformula \placeformula[eq:1b] \startformula c^2 = a^2 + b^2 \stopformula \placeformula[eq:1c] \startformula c^2 = a^2 + b^2 \stopformula \stopsubformulas Formula (\in[eq:1]) states the Pythagora's Theorem twice, once in (\in[eq:1a]) and again in (\in[eq:1b]) and \in[eq:1c]. \stoptext ---- has two faults: - subformulas 1b and 1c are not numbered (obviously, references to them show "??"), - vertical distance between 1c and 1b is somehow bigger that that between 1b and 1c. How to fix it? (Compiled with: ConTeXt ver: 2015.07.28 19:12 MKIV beta fmt: 2015.7.30 int: english/english.) Best regards, Lukas -- Ing. Lukáš Procházka | mailto:LPr@pontex.cz Pontex s. r. o. | mailto:pontex@pontex.cz | http://www.pontex.cz Bezová 1658 147 14 Praha 4 Tel: +420 241 096 751 Fax: +420 244 461 038