I was having a discussion with a friend on google calculator, and it soon turned to how google could detect it was a math expression and not a query, 2+4/6*8
I think it should be possible using a regex, but after an hour of trying, I still cant seem to replicate it. Does anyone have any ideas?
Then the bigger question is how does it also detect the conversions:
12 * 12oz. in gallons
the speed of light in km/fortnight
Any ideas?

In reply to how would you detect a math expression by Anonymous Monk

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