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The Description and Use of the Sector (1624)
Gunter, Edmund · leaf 91
8 2000© 3* 10000 \6 9375 IS 8750 M 8125 13 7500 12 <%S 11 6250 IC 5625 9 5000 8 4375 7 375° 6 ■■ •— • ■ 3J 5 J 500 4 187 j 3 1250 2 615 i 1 CHAP. CHAP. V. Of the refoktion ofjfthericaU triangles. # FOr our praftife in fphericall triangles, let A be tht equi-noctial 1 point, ^B an arfce of tne… … Let B D be an arke of the horizon reprefenting the am-plitude of the Sunn es riling from .jthe-Eaft, and BE an arkeof the horizon for his fetting from the Weft: fo DC /hall bethe difference of afcenfion, and C E the difference of deten-tions A D the oblique afcenfion , and AE the oblique…Internet Archive · Public Domain Mark 1.0. Free to use for anything.
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