I'm having hard time figuring out the following sentence in my textbook.
"Two reflections will evidently result in a (fractional) linear transformation"
I'm confused because I don't know if the two reflections are with respect to the same circle or not. If it is the same circle, the composite would be identity and it is a fractional linear transformation. But it sounds a little weird to call it "linear transformation" to me. However, if they are with respect to different circles, it's not "evident" to me so I need some help with it.