T( 20,45, -45,45, -85,90, -95,90, -45,125, -45,145 )
.pump(Console.println,Void.Read,
      fcn(b1,b2){ "%.1f\UB0; + %.1f\UB0; = %.1f\UB0;"
                  .fmt(b1,b2,bearingAngleDiff(b1,b2)) });