From: Joseph Wright [[log in to unmask]]

In terms of input range, I've gone for -999999999.999999999 to
+999999999.999999999. This should be sufficient for a wide range of
purposes (for example, if you convert a dimen into a floating point
number in units pt then you are safe for any dimen TeX can handle).

====

Please would you clarify for me, Joseph.  Does this package provide floating point numbers, as described in:
    http://en.wikipedia.org/wiki/Floating_point

From what you've written above it seems that your implementing fixed point.
    http://en.wikipedia.org/wiki/Fixed-point_arithmetic
namely "a fixed number of digits after (and sometimes also before) the radix point".

-- 
Jonathan

-- 
The Open University is incorporated by Royal Charter (RC 000391), an exempt charity in England & Wales and a charity registered in Scotland (SC 038302).