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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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DE CONETITLITIONE
Desiderium VII. Philo-
matha.
Datis tribus rectis auartam proportiona
tem invenire.
Ducantur duocrura, ex eodem puncto A.
Fic. 135. Tub medioeri Llo acuta ciraricantia,
in qua apeneto A. eransferantur alternatim da
eaetres rectae: prima in AB. Cecunca in ACI. ter
tia in AD. iunsantur termini primae de lecun
Aa BCi. _ d termino certix D. duCatur iunGentI
BC. Parallela D En ec AF. erit quarta proxortio-
AalIS.
Monicorium.
(2) Datis crabus, Pro inreniensa certis, po.
natur secunda bis; e procedatur ue antea.
(2) Tertia AB. Potest a puncto B. incipe
re, uc lt B d. et quarta incipiet a puncto C. erit
gue Cic.
(3) Cionlustum ee hic est, achibere Gram-
momerron, uctanto exactior fiat determinatio.
Desiderium IX. Philo-
matha.
vatis duabus rectis AB. BC. FiC. 136. me-
diam proportionalem invenire.
c
Solutio.
sunsantur in concinuum, ee super tota
AC.. eanquam Diamerro, deseribatur semicir.
CuL2S