On 5/31/2016 4:04 PM, Mark Lloyd wrote:
On 05/31/2016 12:21 PM, Doug Miller wrote:
FromTheRafters wrote in news:nik91o$q95$1
@news.albasani.net:

[...]
I'm talking about the general case of
Ohm's Law where you can take any two known quantities and calculate the
third.

*Any* two? Really?

Voltage = 120, current = zero. Calculate resistance, please.


Resistance is infinite.

My computer did the calculation right. Some don't. I pressed '1', '2', '0', '/', '0', '=' and the display showed 'inf'.


For whatever it's worth...

http://www.wolframalpha.com/input/?i=120%2F0