20260715 创立[br]研习自：[url=https://mp.weixin.qq.com/s/CU0OKA__IMD7MbiDnjsmZg]​ggb进阶136：利用序列（极坐标、复数、位似）、迭代等多种方法绘制点阵（2）[/url][br][url=https://mp.weixin.qq.com/s/CU0OKA__IMD7MbiDnjsmZg]mp.weixin.qq.com/s/CU0OKA__IMD7MbiDnjsmZg[/url][br][br][br]

n=滑动条(1,100,1)[br]赋值(n,30)[br][br]初始长度[br]a=滑动条(0,5,0.01)[br]赋值(a,1)[br][br]#缩放倍数[br]c=滑动条(-2,5,0.01)[br]赋值(c,2)[br][br][br]#旋转角度[br]qq=滑动条(-2,5,0.01)[br]赋值(qq,6)[br][br]b=π / qq[br][br]A=(0,0)[br]#B=(a,0)[br][br][br]l1=A+扁平列表(追加({(0, 0)}, 序列((a sin(b) c^商式(k - 1, 2); b 商式(k, 2)), k, 1, n)))[br]l2=序列(向量(l1(k),l1(k+1)),k,1,n)[br]l3=序列(文本("P_{"+k+"}",(0.15,-0.15)+l1(k+1)),k,1,n)