More Accurate Parallel Resistance

[Joe Horn]

(01-26-2014 11:46 AM)Steve Simpkin Wrote:  Thank you, Joe. That "catastrophic accumulation of roundoff errors" issue while calculating parallel resistance values has been keeping me up at night lately

Exactly! Being off by 0.00000000001 ohms makes space shuttles explode! >:-O

More seriously, I was hugely impressed as a youngster at the lengths HP went to in search of excellence and accuracy in their calculators, even worrying about errors in the last digit. And in this case it's very easy to be more accurate, so why not. Even when excellence is not necessary, it's still a fun challenge.