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# Title: Leibniz-Handschriften zur Mathematik LH 35, 12, 2
# Folio 93r, page id 00068195:0185
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angar. 1676.
Curvaes data emo datae curvae perpendicutre, tea produere ut irant alterius 
perpendicularis videtur ad calculum duche  qui non sit in potestate seu cetragonisticum sedatunde
scimus quomodo id feri queat, et ita solvetur hoc modo calculus tetrago nisticiaile. Eodem modo
ita ducere perpendiculares ut fiant altrius currae langetes seu minimae quae ad eam ex dato puncto
duci possint.
Ta X Datas langentes ita produere ut. frant alterius curvae perpendiculares
ducit ad calculum lehaginisticum. Is perime ac prior ata vare iniiri poterit, tum summam
incundo elementorum currae, tum etiam ducendo ex uneilangentas extremo A, peopendentare
ad EC, BCD, tertiae lanrgenti vecunentem in B, et ex D faciendo idem quod
ex A, pro sequentibus langentibus. Nota his meltio hac methodo inve.
niantur eique modi curvae quaesitae, cajus puncta C. sed mechance, ita
ut curva nveniur polygonum inveniat ei valde si vicinum, etsi
non ullumeius verum punctum ut in quadratriae,
Non possunt omnes langentes unius curae esse et tangertes altrius curvae,
quia non se possunt plus semel secare rectae.