Parametric equation of a geometric object in the plane

See Section 27.10.6 for parametric equations in 3D geometry.

The parameq command finds a parametric equation for a curve.

Note that t must be a formal variable, it may be necessary to purge it with purge(t).

parameq(line(-1,i))

⎛
⎝

1+i

⎞
⎠

t−1

parameq(circle(-1,i))

−1+i e^i t

normal(parameq(ellipse(-1,1,i)))

−2 i t²−4 t+i

2 t²+1