Significant digits in a float?

[Adam Funk]

On 2014-04-29, Roy Smith wrote:

> Another possibility is that they're latitude/longitude coordinates, some 
> of which are given to the whole degree, some of which are given to 
> greater precision, all the way down to the ten-thousandth of a degree.

That makes sense.  1° of longitude is about 111 km at the equator,
78 km at 45°N or S, & 0 km at the poles.


"A man pitches his tent, walks 1 km south, walks 1 km east, kills a
bear, & walks 1 km north, where he's back at his tent.  What color is
the bear?"  ;-)


-- 
War is God's way of teaching Americans geography.
                                 [Ambrose Bierce]