global mom_inside_outside_tolerances intol outtol tol a b
if {[info exists mom_inside_outside_tolerances]} {
set intol [format "%.3f" $mom_inside_outside_tolerances(0)]
set outtol [format "%.3f" $mom_inside_outside_tolerances(1)]
set b [format "%.3f" [expr $intol + $outtol]]
}