(sqrt(-2))^2

[retoa]

(10-06-2016 05:10 AM)parisse Wrote:  I would say it's a UI problem, since it works in algebraic mode. The CAS sees only algebraic input, 2d input is converted to algebraic outside the CAS.

I agree, the input changes from (sqrt(-2))^2 to sqrt((-2)^2) when you press enter, so the CAS evaluates sqrt((-2)^2).

But in home it works fine. Is there a difference between the 2D interpretation in home and CAS?

It is very useful to know that CAS only sees algebraic input.

Reto