HP Prime lockup (not a complaint)

[Anders]

(03-23-2015 10:31 PM)Anderson Costa Wrote:  

(03-23-2015 08:43 PM)Anders Wrote:  parisse,

yes you are right, I think there are 2 problems possibly related:
- the basic square root function √ is broken for complex numbers (at least when differentiating) on its own unrelated to simplify. It would be great for it to be fixed in an update (The x^n and n√x works correctly on the same expression!)
- the simplify function should as you wrote have some sort of expression check prior trying to simplify to avoid lock-ups

I believe the function described above is Multivalued in the complex numbers' field.
Some multivalued functions don't work in complex field correctly. This error showed on HP Prime demonstrated the multivalued behaviour of the square root function in my opinion.

Possibly you are right in how square root was implemented. Though I have not exhaustively tried, all other functions I have tried with complex variables (and numbers) work as they should.