Ennio-Sr <nasr(dot)laili(at)tin(dot)it> writes:
> So, the problem is: how can I get to know which results are correct and
> which aren't? May be the presence on the trailing 'e+..' is signalling
> there is an error?
I take it you've never seen floating-point notation before?
Read the "e" as "times ten to the power of".
regards, tom lane