Are you saying there’s no grounds in a patent if it uses math, because no one can patent math? The patent isn’t even about math. It’s about user interface innovations.
I'm saying that other people had already invented, demoed, and published the user interface inventions (concretely, pinch zoom + rotate) before Apple even considered building a computer with a touch screen, and that, as a workaround, Apple's lawyers patented using high-school trigonometry to implement the prior work.
