Hello to all. I need to write a book class document (two sides) with a rarely chapters/section numbering.
The document have three Parts and Two Apendices. The first Part have Eight Chapters, the second Part have five Chapters and the Part three have also five Chapters. The numbering of the Parts is normally (Primera Parte, Segunda Parte, Tercera Parte, in spanish), but the numbering of the Chapters is continuos over the document. That is, the first Part have the Chapters I to VIII, the second Part have the Chapters IX to XIII, and the third Part have the Chapters XIV to XVIII. The numbering of the Sections is also a little strange because is continuos over the document like the Chapters, that is, the first Section label is 1 (not 1.1 but 1) in the First Part, Chapter I, and the last Section label is 123 (123, not 18.xx). So, I need something like this: PRIMERA PARTE %center in page BLA, BLA, BLA %center in page CAPÍTULO I %center in page BLA, BLA, BLA %center in page SECTION 1. BLA, BLA, BLA %left aligned text SECTION 2. BLA, BLA, BLA %left aligned text . . . SECTION (n). BLA, BLA, BLA %left aligned text CAPITULO II %center in page BLA, BLA, BLA %center in page SECTION (n+1). BLA, BLA, BLA %left aligned text . . . SEGUNDA PARTE %center in page BLA, BLA, BLA %center in page CAPITULO (last Chapter number in the first Part plus one) BLA,BLA, BLA SECTION (last Section number in the first Part plus one). BLA, BLA, BLA text . . . and so on to finalize in the TERCERA PARTE, CAPÍTULO XVIII, SECCIÓN 123 (BLA, BLA, BLA) The package titlesec is fantastic, but also very difficult for me and I will appreciate your help about this. Thanks in advance.