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 · 5r

Facsimile

〈II〉 Claudii Ptolemaei Mathematicae constructionis liber secundus

〈II.1〉 CAPUT 1: De universo situ terrae quae a nobis incolitur

His primo constructionis huius libro expositis, quae de universi habitudine summatim anticipanda erant et quae ad rectam cum pertineant sphaeram rerum propositarum contemplationi utilia videbantur, dabimus operam ut quae inclinatae conveniunt sphaerae eorum rursus potissima quaeque quam facillima poterit ratione hoc libro deinceps explicemus. Atque hic quidem illud omnino pri-