Sensors value dont understand


#1

Hi,

Is it possible to know where is the algorithm who was used for the value “yaw”, “pitch” and “roll”?
Is it possible to know why the yaw value change when i turn the matrix creator between 90° , 70° , 60 ° then, 60°, 70°, 90° then 90°, 110°, 128° and 128°, 110°, 90° ?
there is not explications about that in the website …?

Thanks a lot.