An encyclopaedia of architecture, historical, theoretical, & practical. New ed., rev., portions rewritten, and with additions by Wyatt Papworth (1888)
Gwilt, Joseph, 1784-1863, Papworth, Wyatt Angelicus Van Sandau, 1822-1894 · London Longmans, Green · leaf 317
ll increase, till the arc becomes a whole quailrant A.D ; and then the sine is thegreatest it can be, being equal to the radius of the circle; under which circumstance thetangent and secant are infinite. III. In every arc AB, the versed sine AF, and thecosine BKor CF, are together equal to the… … Chap. I. PLANE TRIGONOMETRY. 297 cutanjieiit, and cosecant form a right-angled triangle CDL. All these right-angled trianglesare similar to each other. 1046. The sine, tangent, or secant of an angle is tliesine, tangent, or secant of the arc by which the angle ismeasured, or of the degrees. &c.…
Architecture · Architects
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