Parabola Caustic from Parallel Rays Skew to the Axis

Download Geometry Expressions File

We look at the caustic of the parabola y=x^2 formed by a set of rays at angle θ to the x-axis.

If we rotate the caustic and scale it, we find that it is the same as the curve generated by a set of rays parallel to the y-axis.


Name Input
Locus Eq Derive Input Maple Input MathML Input Mathematica Input Maxima Input Mupad Input TI-Nspire Input text Input Image
Google Analytics Alternative