dhis2-devs team mailing list archive

[Morten Olav Hansen <mortenoh@xxxxxxxxx>]

> Yes, this is my point. I am sure (without knowing the details) that
> there are restrictions on what would be a valid exponent and fraction
> for a decimal representation of a real number.  If a number with 255
> digits is stored as text, and whether the values are handled as a
> double (I think that all values are treated as doubles regardless of
> whether they are integers or not), this places different restrictions
> on the number length which we should allow. So, if someone types in an
> exponent with 200 numbers and 55 decimal points (which we could store
> as text), would be be a valid double value?

The range of double should be -1.79769313486231570E+308 to
1.79769313486231570E+308 (if using 64 bit java I assume..).

There is also BigInteger / BigDecial that could be used, that supports
even bigger numbers.

That said, this is just what Java has to offer, what DHIS2 supports I
do not know.

--
Morten