At 01:19 PM 3/17/2003 +0100, you wrote:

Hi,

I would like to change the numbering of several formulae as follows:

<mathematical expression> (1.1) <mathematical expression> (1.2a) % here is <mathematical expression> (1.2b) % the problem <mathematical expression> (1.3)

\placeformula \startformula a = b + c \stopformula \placeformula{a} \startformula a = b + c \stopformula \placesubformula{b} \startformula a = b + c \stopformula \placeformula \startformula a = b + c \stopformula \placesubformula{a} \startformula a = b + c \stopformula \placesubformula{b} \startformula a = b + c \stopformula ------------------------------------------------------------------------- Hans Hagen | PRAGMA ADE | pragma@wxs.nl Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: +31 (0)38 477 53 69 | fax: +31 (0)38 477 53 74 | www.pragma-ade.com ------------------------------------------------------------------------- information: http://www.pragma-ade.com/roadmap.pdf documentation: http://www.pragma-ade.com/showcase.pdf -------------------------------------------------------------------------