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 179
then take the depth of the greater fegment, and carry it «3 !iL … Of the lines offnfcribed bodies] 151 parallel/ to the diameter :fo the number of points whereinthey ftay,(hill (hewthe proportion to loo. As ifthediam-ter of the ciree giren werc*^ L, the depthofth greater fegment L O being 75, doth (hew the propor-tion o»-thefegmc itOML TS^zo the circle to be as…
Astronomy · Puritans
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