Rev math

[curry]

I wrote:

>  My question is, can we trust about that number of digits for all types
>  of calculations?

Dar Scott wrote:

>Yes.  Use 14.  (49 bits floating point)  Use less if you need exact
>equality.

Thanks, Dar. So, does that mean we can take numbers of any length, go 
ahead and perform the operation, and then trust the result to 14 
digits, or do we first have to first preprocess the operands to a 
certain number of digits according to the type of operation?

Thanks,

Curry