在www.google.com输入： 5 + (sqrt(1-x^2(y-abs(x))^2))cos(30((1-x^2-(y-abs(x))^2))), x is from -1 to 1, y is from -1 to 1.5, z is from 1 to 6 好凶残！~理/工科男的浪漫吗？（又谂起白羊座……
