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The Description and Use of the Sector (1624)

Gunter, Edmund · leaf 61

An illustration from The Description and Use of the Sector, 1624, leaf 61
to the lateraltRadius^that is,to the wholeline of Sines-on the5*#0r3thereneeds no farther worke, but to take the other fines alfo outof the fide of the Seftor. But if it be either greater or leller,then let it be made a parallell Radius, by applying it ouer inthe lines of «y#»f/,betweene 90 and 90$… … I«BB, the diftancebecyveene^o and ?o, be equall to the giuen The general! vfe */Sine$ And Tangents. 45 giucn radius A C. Here the lines ^40, A $0, Ago, may becalled thelaterall fines oi^o,50,6c 905m regard of their placeon the fides of the Settor. The lines betweene 40 and 40, be-tweene $o and 50,…

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