...In particular, the curves expressed by r = a θ, r = ae b θ , r = a /θ ( a and b are constants) are called Archimedes' spiral, logarithmic spiral, and hyperbolic spiral (Figure 21). When these are set, the curve expressed by t , with t as a parameter, is called Cornu's spiral or clothoid (Figure 22). [Minoru Nakaoka]... *Some of the terminology that mentions "Cornu's spiral" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…とくに,r=aθ,r=aebθ,r=a/θ(a,bは定数)で表される曲線をそれぞれアルキメデスの螺線Archimedes’ spiral,対数螺線logarithmic spiral(等角螺線equiangular spiral),双曲螺線hyperbolic spiralという(図21)。とおくとき,tを媒介変数として,で表される曲線をコルニュの螺線Cornu’s spiralまたはクロソイドclothoidという(図22)。【中岡 稔】。… ※「Cornu's spiral」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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