Iosephi Torelli veronensis Elementorum prospectivae libri II : opus posthumum (1788)
Torelli, Giuseppe, 1721-1781, Bertolini, Giovanni Baptista · Veronae : Ex officina Moroniana · leaf 112
tribus figuris. PROPOSITIO III. Sl pyramidis triangularem bafirn habentis, dataequepofitione & magnitudine umbra plano aliquo per ejusbafim redam fecetur, five ea parallela fuerit,five rece-dens, umbrae, quam diximus , planique fecantis fe&io-jnem invenire. Sit ABCDKLMI umbra parallela… … L i b e r II. Ducatur a pun&o D rectaDE fubjetflo plano perpendi- ularis; agaturque per DE, & mn&um K planum DEK fe-clionem faciens in fubjefto pla-no re&am EK. Itaque planumGPH aut erit reCtum ad fub-jeftum planum, aut ad ideminclinatum. Sit primo re£lum.Et quoniam duo plana…
Perspective · Geometry
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