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

[yangyongkang]

There are some other examples
(i)

Code:

normal((simplify(int(e^(sin(x))*(x*cos(x)^3-sin(x))/cos(x)^2,x))))

xcas gets：

Code:

(x*exp(tan(x/2)/(tan(x/2)^2+1))^2*tan(x/2)^2-x*exp(tan(x/2)/(tan(x/2)^2+1))^2+exp(tan(x/2)/(tan(x/2)^2+1))^2*tan(x/2)^2+exp(tan(x/2)/(tan(x/2)^2+1))^2)/(tan(x/2)^2-1)

Not the most simplified answer

(ii)

Code:

int((sqrt(1+x^2)+sqrt(1-x^2))/sqrt(1-x^4),x)

Code:

int((sqrt(1+x^2)+sqrt(1-x^2))/sqrt(-1+x^4),x)