To Marker | (Required) The coordinate system marker whose rotation is being measured. |
From Marker | (Optional) The coordinate system marker with respect to which the rotation is being measured. If you don't specify this argument, it defaults to the global coordinate system. |

is the y-axis of the To Marker, T.
is the y-axis of the From Marker, F.
is the z-axis of the From Marker, F. Function | AX(marker_T, marker_F) |
Result | 0.5235 or /6 |