I agree that the impact of a fix would be hard to determine, ASHLEY. However, if anyone is using such equations as this example to get the answers they need then they will have been relying on fluke rather than an understanding of maths... I'm not sure that competent game developers would fail to notice the error, and it's quite possible that this is the first time someone has actually used ^x whilst knowing what they were doing, hence why this bug has only just been spotted. But of course I could be wrong...
If any fix could break 3rd party plugins then I would immediately concede that the best course of action would be to document it clearly in the manual and move on. The implications for simple maths like trig just tickles my OCD, 'tis all, and I think that maths in C2 should be clean and logical without the need for user compensation.