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 33
i w iM £°» r?o M m ,w … J4V 4 0 And this line A B fo diuided rhall be the line of Sines,and mud be transferred into the SeBor. The number fetto them are to be 10. 20.30. &c. vnto 90 as in the exam-ple. If now in the point D, vnto the diameter C D, wefhallraiiea perpendicularT> E. and to it drawe ftreightlines from…
Astronomy · Puritans
Internet Archive · Princeton University Library · Public Domain Mark 1.0. Free to use for anything.
![An illustration from Examen dv livre des Recreations mathematiqves, & de ses problemes en geometrie mechanique, optique & catoptrique [du J. Leurechon] Où sont aussi discutées & restabiles plusieurs experiences physiques y proposées (1639)](https://img.insideoutlibrary.com/img/200/ia-examendvlivredes00mydo-364-65.webp)
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