Until a few weeks ago, I was able to create programs and properly call them in the "Calculus" section of my calculator. Now, I still can create them (in the "double window") as I used to but can't call them. More precisely, I call them (in the left hand side of the double window) and nothing happens (even when the program is supposed to display a number).
Here is the program I've made:
Define sn()=
Prgm
Disp 2
EndPrgm
Then, on the left side of the double window, I call sn():
sn()
and the calculator only displays on the screen "Done". As if the program I wrote didn't exist.
I have not forgotten to save the program.
If anyone could help me.
Thanks in advance!
Note: I'd like to add that there is a star (*) to the left of my program's name on the right-hand side of the double screen.