Re: [P-1788]: Anything else to be said about interval overlapping?
Arnold et all,
On 2010-11-22, at 11:54 AM, Arnold Neumaier wrote:
> Ned Nedialkov wrote:
>> On Nov 22, 2010, at 4:14 AM, Arnold Neumaier wrote:
>
>>> The credible alternative is to require only the three predicates
>>> subset, interior, and disjoint (and perhaps equal).
>> As a person that has written quite a bit of interval software,
>> I would say that subset, interior, equal, and not equal must be present.
>
> Just curious: Where did you need that two intervals are distinct?
In my ODE solver, when the integrator returns, it returns the point in time t
it has reached. It is an interval which encloses a real value, e.g. 0.1.
Typically the user says integrate up to tend.
One can check if tend is reached by "if ( t != tend )"
I do not recall other places I have used !=.
Regards,
Ned