Getting the value for the Rotation around Z from and Open3D Transformation Matrix

[Dalecn109]

So I have a transformation matrix which I have got in Open3D after comparing Point Clouds but I want to find out from that matrix the exact value for rotation around the Z axis so I can use it else where. What would be the mathematical formula to work this out?

[theNded]

Search matrix to euler angles on Google and there are a plethora of references, e.g. https://stackoverflow.com/questions/15022630/how-to-calculate-the-angle-from-rotation-matrix

[germanros1987]

@Dalecn109 please, consider marking this question as answered.