ysin// start// [[2,0]]// end// ysi1k// start// [[-1.3052,2.1239],[-0.5549,1.4042],[1.0684,1.3889]]// end// ysi1c// start// [[-0.8458,3.2418],[0.2567,3.2572]]// end// start// [[-1.198,-0.1272],[0.4099,-0.8316]]// end// ysi2k// start// [[1.4665,2.8284],[0.7008,-0.0506],[-1.244,-0.8316]]// end// ysi2c// start// [[1.1756,1.7462],[0.9152,0.7406]]// end// start// [[0.2721,-1.6738],[-1.1981,-1.5666]]// end////