Subdivision with zero (0) doesn't return error

Hello David,

Something interesting that appears to be a bug. (?)

I am building in Grasshopper an APSH (Annual Possible Sunlight Hours) calculator, one of the 4 analysis required under the British law of Rights of Light, as described in the:

Paul Littlefair, Site Layout Planning for Daylight and Sunlight, A guide to good practice, 2nd Ed., IHS BRE Press, 2009

It can be calculated using a Skylight Indicator. In the random link from Google below in the bottom image you can see an example of a manual calculation of this type of analysis:

http://www.southwest-environmental.co.uk/further%20info/sustainabil...

Well irrelevant of this whole tedious process, at some point I have to subdivide two list of numbers and for the three cases where the dividend appears to be 0 I get those very large numbers you see as result.(and not an error for subdividing with 0).

Seems like the 0s are not really 0s but approximated to be?

Thanks in advance!

Dimitris