 
 
 
The parabola command draws parabolas and other conic sections.
parabola can take parameters in different forms.
parabola returns and draws the conic section given by the
equation.
 Input:
Output:
 
parabola returns and draws the parabola.
 Input:
Output:
 
Note that if the second argument is a point on the real axis, the real affix of the point won’t work, it needs to be specified with the point command.
parabola returns and draws the parabola 
y = b + c(x − a)2.
 Input:
Output:
 
Input:
Output:
 
Note that if the third argument is a point on the real axis, the real affix of the point won’t work, it needs to be specified with the point command.
 
 
