The description and use of the sector, crosse-staffe, and other instruments : with a canon of artificiall Sines and Tangents, and the use thereof in astronomie, navigation, dialling and fortification .. (1636)
Gunter, Edmund, 1581-1626 · London : Printed by William Iones for Iames Bowler · leaf 497
the bale Z S by the fourth Propofition, as I (hew in the.vfe of the Sector, page 86* But here for variety, I will (hew how the fame may beedone of two opperations, both in this and the reft of thecafes following, without knowing the quantity of the Per-pendicular; 1 As the Radius or fine of Z R P ,… … to and Table of Logarttbmes. 3 $ tothecofineof ZP 38.300 9893.5443^ 24.389*9 Sothecofineof RS 3j.5*3o 9908.6438 to the cofinc of ZS 40. o o 9884.2539 21 Jo finde a S IV E ly knoVtng the other two fides and one angle next the fiderequired. Asiftthe triangle Z P *? hauing ZP, 38. ;or and ZS 40gr. o…
Astronomy · Puritans
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