Analytic geometry for colleges, universities, and technical schools (1892)
Nichols, E. W. (Edward West), 1858- · Boston [Mass.] : Leach, Shewell & Sanborn · leaf 218
180°, cos 2 ^ = cos 360° = 1 .-. r = -J- a. An examination of these values of r shows that the curveoccupies the opposite angles formed by the asymptotes of thehyperbola. The curve is symmetrical with respect to both axes. HIGHER PLANE CURVES. 203 TRANSCENDENTAL EQUATIONS. 157. The Curve of… … Fig. 67. To construct the curve. Give values to x which differ fromeach other by 30°, and find from a Table or NaturalSines the values of the corresponding ordinates. Tabulating the result, we have, Value of X Corresponding Value of y 0 .50 .87 30° = 0 IT 6 ~ .52 « 60° = 2 TT 6 = 1.04 « 90° = 37r 6…
Geometry, Analytic
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