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.

mathematicus ‘mathematical’

Latin. – Grammar: adj.

References: Alm. George: I.1:6, 4r:9. – Alm. Sicily: I.1:6, f. 1v:41
Translation of:
Greek: μαθηματικός [Alm. Heiberg: I.1, 5:7]
Synonyms:
scientia[Alm. Gerard: I.1:6, f. 1va:32]