void local fn GetDifference(  b1 as float, b2 as float  )
  float r = ( b2 - b1 ) mod 360.0
  if r >= 180.0 then r = r - 360.0
  printf @"%9.1f\u00B0 %10.1f\u00B0   = %7.1f\u00B0", b1, b2, r
end fn

printf @"Input in -180 to +180 range:"
printf @"-----------------------------------"
printf @"%9s %12s %15s", "b1", "b2", "distance"
printf @"-----------------------------------"
fn GetDifference(  20.0,  45.0 )
fn GetDifference( -45.0,  45.0 )
fn GetDifference( -85.0,  90.0 )
fn GetDifference( -95.0,  90.0 )
fn GetDifference( -45.0, 125.0 )
fn GetDifference( -45.0, 145.0 )
fn GetDifference( -45.0, 125.0 )
fn GetDifference( -45.0, 145.0 )
fn GetDifference(  29.4803, -88.6381 )
fn GetDifference( -78.3251, -159.036 )
fn GetDifference( -70099.74233810938,   29840.67437876723 )
fn GetDifference( -165313.6666297357,    33693.9894517456 )
fn GetDifference( 1174.8380510598456, -154146.66490124757 )

HandleEvents