Analytic geometry for colleges, universities, and technical schools (1892)
Nichols, E. W. (Edward West), 1858- · Boston [Mass.] : Leach, Shewell & Sanborn · leaf 228
=4 11 ^ Vctt 90° _ 2 T4 ti i V2c7r 135° - ^74 ti •1 VSCTT 180° = TT li Vc TT HIGHER PLANE CURVES. 213 Values of $ 225° = ^4 270^ = —4 315° = 1^4 360° = 2 TT GO Corresponding Values of r *V6 Ctt V27^00 Constructing these points and tracing a smooth curvethrough them we have the required locus. Since… … Fig. 73. 214 PLANE ANALYTIC GEOMETRY. If ^ = 0, ? = 00; if ^ = 00, r = 0. This curve has theinitial line as an asymptote to its infinite branch. 165. The Logarithmic iSph^al. This spiral is the locus generated by a point so moving thatthe ratio of its vectorial angle to the logarithm of its…
Geometry, Analytic
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