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The Description and Use of the Sector (1624)

Gunter, Edmund · leaf 182

An illustration from The Description and Use of the Sector, 1624, leaf 182
-fiafe* . GHAR Tbevfetfthc hnes of Chords*CHAP. IIII. ♦ j$ 3 The <vfe of the lines ofequall parts jioyned with the hnes of Chords* THe lines of cquall parrs do feme alfo for protraction, asmay appcare by the former Diagrams-,bur being ioynedwith the lines of Chords, which I place vpon one fide… … Let the diilancc required be AB.At ^thefirft fta,tioi makechoife ofafcation line toward C3and obferue them^lc BAGby the cangentlines,which may be 43 gr.io m% tru a h minggon an hundred paces toward C, I ffrake my fecond ftatt011at Dj where iuppofr I find cue angle B D C to be $$gr. °* T*^\~ The yje…

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