I reverse-engineered the values from the numbers you provided in your book. Some, who may choose to play around with these sorts of things will have a higher degree of resolution with the given decimal places.
I'd rather fail on the side of anal retentiveness, than publish so gross values, that they're of little value to users. 4- place accuracy is seen across the literature. Five doesn't hurt anything. Bankers take it out to 13- decimal places every day.
