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# Title: Erhardi Weigelii Sacrae Caesar. Maiest. ut & Com. Pal. Sultzb. Consiliarii, Supr. Artium Archit. Directoris Saxo Ien. Mathemat. PP. totius Academiae Senioris, Philosophia Mathematica (shelfmarks Leibn. Marg. 65; ZEN Leibn. Marg. 65)
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DDE LNVESTTBATIONE
esiderium
Rationem directionis converrentium par-
cium, in duabus rectis se mutuo secan-
tibus, citra punctum sectionis ipsum; es
directionis oppositarum partium ultra
punctum sectionis determinare. I.C. an
suli C. F. . rationem ad angulum BED;
breviter. rationem angulorum verti-
calm inter seu determinare. Fis. 70.
ABaLy EIS.
Cum rectarum linearum aequalis utrobi-
quesit ratio directionis, quioad omnes partes;
Probabile relinquitur, Directionem conrergen-
tialem citra punctum sectionis, aequalem esse di-
latu
i. 15
leB
mis
Mle
rectioni convergentiali partium ultra punctum suone
sectionis; h. c. angulos verticales inter se aqua- senei
Les ese. Oux probabilicas ut ad certieudinem pver
reducatur, adhibenda venit compolitio vel di iis
vilio, non cositationis de eodem vel diverlo, per sod
altirmationem auc negationem, sec rationis ueri. Icom
usque rel inter se, vel cum alia quadam utrique lerii
coonata ratione: vel materialiter, per addi- llal
aut subtractionem: vel formaliter, per con- somne
aut disjunctionem, vel utroq; modo: ut obti- Mudet
reantur rationes causales, ex quibus aequalitaris nio
ratio directionis utriusque nalcitur. Materia. uI
liter inter le componi diridire non pose Dire-
ctiones has cum effectu scientix, patet ex eo,
quod
ADCo
A3 B,
utt
1
i