PAL

Ptolemaeus Arabus et Latinus

_ (the underscore) is the placeholder for exactly one character.
% (the percent sign) is the placeholder for no, one or more than one character.
%% (two percent signs) is the placeholder for no, one or more than one character, but not for blank space (so that a search ends at word boundaries).

At the beginning and at the end, these placeholders are superfluous.

mathematische Dinge ‘mathematical systematic treatise (Almagest)’

German

References: PH Nix: I.1:1, 71:7
Translation of:
Arabic: الأمور التعليمية [PH Morelon: I.1:1, 15:5]
Synonyms:
das Buch Syntaxis[PH Nix: I.2:1, 73:9]