[Scilab-users] ">" operation error in a some case

[Samuel Gougeon]

Hello Philippe,

Le 27/10/2016 21:43, philippe a écrit :
> Hi to all,
>
> Le 27/10/2016 à 09:57, Samuel Gougeon a écrit :
> >
> > It is very likely due to the fact that one or both operands are
> > complex-encoded.
> > You may check that with isreal(x) & isreal(y).
>
> I've being fighting for a long time with this problem. Most of the 
> time, the variable x will contain complex value due to rounding 
> errors, so it's hard to identify the problem !!!
>
> The error message is unclear  because it suggest that ">" (operator n° 
> 2) is undefined  for "constant"  variable (type "s") although 1>0  
> works fine ... I think it will be better that "x>y" returns the result 
> of "real(x)>real(y)"  to avoid rounding problems .
.
IMO, instead of being undefined, default overloaded inequalities between 
constants should be defined and display an explicit error message 
telling that they are not defined for complex-encoded operands.

BR
Samuel