Function lupnt::RotZ¶ Defined in File math_utils.h Function Documentation¶ Mat3 lupnt::RotZ(Real angle)¶ Passive (frame-rotation) rotation matrix about the z-axis by angle. See RotX for sign/passive convention. Used e.g. by EarthSiderealRotation/ RotSideralMotion to build the Earth-rotation-angle rotation Rz(theta_ERA).