Incorrect results and quirks

[Marcus von Cube]

(03-31-2015 05:02 AM)B1nary0 Wrote:  The difference is,... on the TI-nSpire and every other calculator I have ever used,.... (-1)^(1/3) returns -1

In Home your expression is evaluated as (-1)^0.333333333333 which is clearly different to 3 NROOT (-1)^2. In CAS, the result will be different because 1/3 can be treated symbolically. Home mode just can't do that.