Just found that Qalculate! segfaults when trying to calculate:
diff((x-tan(x))/(x^2*sin(x)))
I also tryed: diff((x-tan(x))/(x^2*sin(x)),x,1) but it sefgaults again.
If we try the same function adding "* radian" inside trigonometric function it works right:
diff((x-tan(x*radian))/(x^2*sin(x*radian)),x,1)
This works too:
diff((x-tan(x*radian))/(x^2*sin(x)),x,1)
Many thanks,
TDFS
Still broken in 0.9.7.