If X^Bp [>] … III. In trianguloSphaerico, cujus vclangulus unus cftrcft-us-, vel latus unum a*qualequadranti circuli (quod idrirco qua.drantale dicirur)quinqucfunt partes five termini circulates :nam quadransnon recenfetur inter termi-nos. Atque ex quinqoe terrainisprxcer illos quiangulo redo3 five la-teri…
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![An illustration from Directorivm generale vranometricvm : in quo trigonometriae logarithmicae fvndamenta, ac regulae demonstrantur, astronomicaeq[ue] supputationes ad solam ferè vulgarem additionem reducuntur : opus vtilissimum astronomis, geometris, arithmeticis, perspectiuis, architectis, praecipuè militaribus, mechanicis, geographis, nec non ipsis philosophis naturalibus (1632)](https://img.insideoutlibrary.com/img/200/ia-directorivmgener00cava-310-0.webp)
