Drehung um Achse im R³
https://www.geogebra.org/m/fdmmvvma
S_b:=R(180°,1/sqrt(2),1/sqrt(2),0)
\(\small S_b \, := \, \left(\begin{array}{rrr}0&1&0\\1&0&0\\0&0&-1\\\end{array}\right)\)
Cube={(0, 0, 0), (1, 0, 0), (1, 1, 0), (0, 1, 0), (0, 0, 1), (1, 0, 1), (1, 1, 1), (0, 1, 1)}
S_b Cube=
Cube'={(0, 0, 0), (0, 1, 0), (1, 1, 0), (1, 0, 0), (0, 0, -1), (0, 1, -1), (1, 1, -1), (1, 0, -1)}