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, De planetarum hypothesibus liber (tr. John Bainbridge)

London, Guilielmus Jones, 1620 · 36

Facsimile

picycli vero centrum ab apogaeo eccentricitatis in mundi consequentia partibus 356 et sexagesimis 6′. Rursusque borealis obliqui circelli limes in mundi antecedentia partibus 176 et sexagesimis 6. Stella autem a boreali obliqui circelli limite in mundi consequentia partibus 296 et sexagesimis 46′.

9. De Iovis hypothesi

In Iovis sphaera cogitetur circulus zodiaco concentricus, qui in eius plano et circum idem centrum aequabiliter ab occasu in ortum moveatur quantum inerrantium sphaera. Deferat autem hic circulus alterum sibi