is it possible to take the fourth root of a number on this calculator?
$$\sqrt[4]{625}=625^{1/4}$$
so you can enter 625^(1/4)
$${{\mathtt{625}}}^{\left({\frac{{\mathtt{1}}}{{\mathtt{4}}}}\right)} = {\mathtt{5}}$$
Yep...for instance the 4th root of 6
Type in "6"
Hit the x√y key
Then, type in "4"
Hit the = key
And that's it....