Hi. I have this strange error.
Whenever I type D(f)(x) into the maple prompt, the program adds a whitespace between D(f) and (x), so I get the wrong output. I have to go back and delete the space manually. Here is a picture. http://prntscr.com/8vji4k
I type 'D(f)(x)' and the software displays 'D(f) (x) ' in the prompt, with the extra space.
I am using maple 2015 if that helps, but I think I had the same error with Maple 18
I did not add a space. I literally just entered f:=x->x^2 -3*x + 2; D(f)(x)
but the computer adds a space as I type D(f)(x).
Also I'm not sure why the space ruins the expression
What i am supposed to get is ' 2x - 3 '