11.001001000011111101101010100010001000 Arithmazium
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Without gradual underflow

Paranoia sets a reliable value base_iny which is used in the summary of arithmetic without gradual underflow. The utility does_tiny_value_misbehave() gives some assurance of a well-behaved value. 

# Now consolidate the three triples of tiny results into the values
# from the loop computation. Break into several cases...
# This defines base_tiny, which may be needed as a final result in some
# anomalous arithmetics.
if does_tiny_value_misbehave(min_positive):
    base_tiny = less_tiny_B  # Back up by a factor of 1/H, for CDC 7600
else:
    base_tiny = min_positive
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