 | William Kent - Engineering - 1902 - 1204 pages
...arc is that part of the proditced diameter which is intercepted betn-een the centre and the tangent. The versed sine of an arc is that part of the diameter intercepted beticeen the extremity of the arc and the foot of the sine. In a circle whose radius is... | |
 | Thomas J. Foster - Coal mines and mining - 1905 - 698 pages
...The cosecant of an arc is the secant of the complement of the arc. Thus, OT is the cosecant of A C. The versed sine of an arc is that part of the diameter included between the extremity of the arc and the foot of the sine. DA is the versed sine of A C. The... | |
 | Thomas J. Foster - Coal mines and mining - 1916 - 1230 pages
...The cosecant ot an arc is the secant of the complement of the arc. Thus, Or' is the cosecant of AC. The versed sine of an arc is that part of the diameter included between the extremity of the arc and the foot of the sine. DA is the versed sine of AC. The... | |
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The tangent of an arc is a right line touching the circumference, and drawn perpendicular to the diameter ; and is terminated by a line drawn from the centre through the other end of the arc ; thus BK is the tangent of the arc BH. 
