chickadee » math » +max-subnormal.hi

The high-order flonum of the maximum-magnitude, subnormal double-double flonums.

> +max-subnormal.0
2.225073858507201e-308
> +max-subnormal.hi
1.0020841800044864e-292

Try to avoid computing with double-doubles in the subnormal range in intermediate computations.