[Bug or Suggestion]About HP Prime G1 New Beta Firmware

[yangyongkang]

I am back again，This article Mainly about CAS
(i)
Enter in the HP Prime CAS interface

Code:

plotfunc(x^(2*ln(x)),x)

Then click Show and the calculator will restart.

(ii)
Regarding the multivariate function to find partial derivatives, hp prime does not work well.
Input

Code:

simplify(diff(f(r*cos(α)*cos(β),r*sin(α)*cos(β),r*sin(β)),r))

Calculator output

Code:

"Expression used like a function diff(f,2)
You should write subst(diff(f,2),f,r*cos(α)*cos(β),r*cos(β)*sin(α),r*sin(β)) 错误: 宗量值错误"

(iii)
-LambertW() function is not supported enough
E.g

Code:

diff(LambertW(x),x)

Code:

plotfunc(LambertW(x),x)

The result is returned as it is.

[yangyongkang]

?????

[compsystems]

A serious problem that is not that of the firmware but that of the simulator software is that some keys, such as change keys [shitf], [alpha] and [space], they remain hold some times after being pressed, this makes it useless when used in the classroom, because the student is bothered to continue typing and the simulator does not respond.