\Huge{roundTo( A_DECIMAL, A * pow( 10, -A_DECIMAL ) ).toFixed( A_DECIMAL ) - roundTo( B_DECIMAL, B * pow( 10, -B_DECIMAL ) ).toFixed( B_DECIMAL ) = {?}}
A * pow( 10, -A_DECIMAL ) - B * pow( 10, - B_DECIMAL )
graph.subtractor = new Subtractor( NEW_A, NEW_B, A_DIGITS, B_DIGITS );
DUMMY = Array( graph.subtractor.getNumHints() );