Tear Drop Curve

Recently m doing analysis on Tear Drop church.
it is quite complicated when i first saw the shape of the building.
but actually there is a curve function for tear drop.



Tears, tears...
The curve is a generalization of the quartic piriform: this is the curve that results when the parameter n has the value 3.
 
Some special cases:

• n=1: the circle
• n=2: the Tschirnhausen's cubic
  
  Sometimes the teardrop curve is given in a parametric equation as:
  
  
  A further generalization of the curve is given by the pearls of Sluze.