🚀 go-pugleaf

Hi, I was hit this problem when I perform an SQL sum statement like written
below

select iva2_reckey, sum(iva2_cost) from test
group by iva2_reckey



, the expected sum result should be 0 for each grouping yet I find there is
one wired sum result displayed as 4.44089209850063E-16 for grouping valued
3.

To test the proplem, Create a paradox table name test.db with structure and
data like the following:
IVA2_RECKEY INTEGER,
IVA2_SEQNO INTEGER,
IVA2_COST NUMERIC,

PRIMARY KEY(IVA2_RECKEY, IVA2_SEQNO)

IVA2_RECKEY,    IVA2_SEQNO,    IVA2_COST,
1                            0                            43.68
1                            1                            -10.00
1                            2                            -20.00
1                            3                            -13.68
2                            0                            11.46
2                            1                            -9.50
2                            2                            -1.96
3                            0                            11.46
3                            1                            -10.40
3                            2                            -1.06
4                            0                            -11.46
4                            1                            1.06
4                            2                            10.40


just uses SQL Explorer to perform the mentioned SQL statement. Can somebody
help me in
this area? Thanks in advance for your help!