Golf the xᵗʰ root of x
TI-BASIC, 3 bytes

Ans×√Ans


TI-BASIC uses tokens, so Ans and ×√ are both one byte.

Explanation

Ans is the easiest way to give input; it is the result of the last expression. ×√ is a function for the x'th root of x, so for example 5×√32 is 2.