Incorrect results and quirks

[B1nary0]

Ok,... so I figured out that I can use the command surd(expression, n) instead of nroot to have it return only the real result.

Is there any other way to achieve this? I disabled every box or option that offered i or complex results,... but I still seem to get complex results and graphs refuse to include sections that have non real principal roots. It seems that this would be a desirable mode of operation for a very large portion of the target audience for this calculator,... students (like me).

I have also tried turning on every box that mentioned complex, and am getting the same results,... X^1/3 will not plot values of X < 0.