Calculate the bearing angle of any line connecting consecutive points of a traverse framework.

**Known values**: Bearing angle G_{01} and Deflection angles β_{1}, β_{2}, β_{3}, β_{4},...., β_{η-2}, β_{η-1}

**Result**: Bearing angle G_{(n-1)-n}

**Solution**

Considering that the requested angle should get a value between 0 grad and 400 grad, integral circumference multiples are abstracted:

where K integer so that the numeric expression preceding K*400 decreases as many times so the Bearing angle numeric result stands between 0 and 400 grads.