2007-08-05 Maximaでベジェ曲線 bezier(x0, x1, x2, x3, t):= x0*t^3+ 3*x1*t^2*(1-t)+ 3*x2*t *(1-t)^2+ x3* (1-t)^3; wxplot2d([parametric, bezier(10, 12, 40, 32, t), bezier(2, 30, 4, 28, t ), [t, 0, 1], [nticks, 20] ]);