Solved
I experience no problems. Neither with MC15, nor with P30
Maybe something you did in the sheet and deleted later (have you tried to create those expression in a fresh sheet?) or you have found a newly introduced bug.
I guess its another annoying effect of Primes auto-labeling! Its not wrong to call that "feature" a bug - at least its a buggy feature.
Both "x" in the last expression must be labeled the same - either both "variable" or both "-" (automatic).
Enter your E-mail address. We'll send you an e-mail with instructions to reset your password.


