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.

Ptolemy, Almagesti (tr. Stephanus Gracilis)

Paris, Gulielmus Cavellat, 1556 · 26v

Facsimile

pertinere potest, eas, ut ad reliqua viam muniant, in tabula exponemus διὰ το μὴ ἀξιολογον γίνεσθαι τὴν τῶν μεταξὺ ποῦ ημιωρίου παρὰ τὰ ὁμαλὰ διαρορόν i. m. P. Atque ab eo, qui aequatori subiectus est exorsi, circulo, ad eum perveniemus, ubi horarum 17 dies maximus evasit, facta ad ipsas semissis horae accessione, propterea quod non habetur ratio differentiae eorum, quae sunt inter horae semissem, si aequabiliter augeantur.

Praepositis itaque 36 circuli decadibus, singulis deinceps adiiciemus sua climatis ascensionis

tempora, temporumque collectionem ad hunc modum.