Simplifying expression

[Hlib]

(01-27-2021 04:44 PM)oberfeli Wrote:  Hi,

I just picked up the HP Prime and tried some calculation with matrizes and so on.
I tried to deduct one expression from another, both containing the same variables. The result of the Prime was just the basic operation, not the simplified result others calculators give out. See the attached file.

Is there some trick?

Greetings

Just off top. It is often much easier for me to calculate the
result manually (after all, I really studied, and did not sleep at
lectures). The results of hp-prime and hp-50g can never be
trusted 100%. If, after all the calculations, a building collapses
and many people die, it means that you have not studied all
the flags in your HP-50g well: -).