PL/I · Exception
What does ONCODE 330: UNDERFLOW mean in PL/I?
A floating-point calculation produced a result with a magnitude smaller than the smallest value the target format can represent, typically rounded to zero.
A floating-point calculation produced a result with a magnitude smaller than the smallest value the target format can represent, typically rounded to zero.
Check whether the calculation is dividing by a very large number or repeatedly multiplying by values less than one; if a near-zero result is expected and acceptable, handle UNDERFLOW explicitly rather than letting it propagate as an unhandled condition.