HP 50g Giving results for an indefinite calculation

[Cloud]

My HP 50g is giving results for |LN(-1.5)| and other negative numbers it is also showing a graph of this function in which it has a domain in the negative numbers, I've tried disabling Complex but it does not work

Note: For the calculator to graph with absolute values it has to have the rigorous flag enabled

[Gilles]

(10-11-2024 07:00 PM)Cloud Wrote:  My HP 50g is giving results for |LN(-1.5)| and other negative numbers it is also showing a graph of this function in which it has a domain in the negative numbers, I've tried disabling Complex but it does not work

Note: For the calculator to graph with absolute values it has to have the rigorous flag enabled

I have the same behavior... Maybe it's for HP48 compatibility?
-1.5 LN returns a complex number even in real mode |R
Same for the square root etc... And ABS returns the 'module' (in French, I don't know the English word) for a complex number and it gives a real.

[John Keith]

(10-12-2024 10:53 AM)Gilles Wrote:  ... ABS returns the 'module' (in French, I don't know the English word) for a complex number and it gives a real.

The English equivalent would be "modulus" but the usual term is just "absolute value", which is used in the HP manuals and the English Wikipedia.