Test adding two angular values. Bearing to swim searching for front. 270 (INTERNAL VARIABLE) Bearing to swim after passing front on inbound leg. NaN Search bearing: -180 Calculated return bearing: 90 ReturnBearing is not 90 _-180 Calculated return bearing: 450 ReturnBearing is not 450 ₁₈₀ Calculated return bearing: 90 ReturnBearing is not 90 Calculated return bearing: 0 ReturnBearing is not 0