Tony Firshman wrote: >>> The history is documented here >>> http://www.cs.berkeley.edu/~wkahan/ieee754status/754story.html > Can someone please define "Gradual Underflow".
I might be mistaken (as usual ;), but as I understand it that's the denormalised numbers we have discussed here, i.e. when the exponent underflows the value is not set to 0 but it is tried to represent the number using denormalisation as close as possible. Only when the mantissa runs out of bits to hold at least the highest one bit (all zero), then it's a "complete" underflow. Marcel
