【讨论】出个题目做做(欢迎小于5分新手来做,其他的就不加分了）

boby

置顶，方便查看
  
1.一抛物圆锥面
曲线方程：
/* For cartesian coordinate system, enter parametric equation  
/* in terms of t (which will vary from 0 to 1) for x, y and z
/* For example: for a circle in x-y plane, centered at origin
/* and radius = 4, the parametric equations will be:
/*           x = 4 * cos ( t * 360 )  
/*           y = 4 * sin ( t * 360 )  
/*           z = 0  
/*-------------------------------------------------------------------
x = 1 + (4 * t)
y = 2 + (3 * t) + (5 * t ^2)
z = 0

五彩小鱼

kngqian

kevn1981

bianselong

yytdesign

wangjoy

ZGBIAO653

astron

tordang