極方程式 曲線１ f(θ) = (d/5) sin(aθ/b) + (c-3)/5 曲線２ f(θ) = cos(bθ)asin(cθ) + (d/10) 曲線３ f(θ) = cos(bθ)sin(θ/a) 媒介変数 曲線１ x = cos(t) - (c/5)cos((a-3)t/b) y = sin(t) - (c/5)sin((a-3)t/b) 曲線２ x = cos(t) - (c/5)sin((a-3)t/b) y = sin(t) - (c/5)cos((a-3)t/b) 曲線３ x = t - (a/10)t3 y = t2 - (b/10)t4 曲線４ x = t/2 + 0.15 sin(t) + 0.1 sin((20+a)t) y = cos(t)/2 + cos(bt)/2 + 0.3 cos(ct) + 0.2 cos(dt) 曲線５ x = t/2 + 0.3 sin(t) + 0.2 sin(24t); y = cos(t) + cos(at) + 0.6 cos(bt) + 0.4 cos(ct) + 0.5 cos(dt) 曲線６ x = (c/9) sin(at) - (30-c)/9 sin(bt) y = (c/9) cos(at) + (30-c)/9 cos(bt) 戻る