Images of F: Inversion
Below is a illustration of INVERSION which is a reflection in a circle. Drag point M around the ORANGE "F" and observe how the distanced from the center of the circle are related.
Constant width shapes
Linear Transformations: c
MAT.GEO.110, 68353 Postulate #2
Straight line graph
Multiply by i vectors
[+Quantum Continuum]: En - [graphical method]