I'm trying to calculate the cube root of -8, for example, so I type in these buttons:
8
CHS (change sign)
Enter
3
1/x
y^x
But it gives me an error. What is the correct way to go about doing this?
HP-15c power calculations from this owner's manual ...
http://hp15c.org/hp15c.pdf
(-8)^(1/3) is exactly what I am doing in my original post. If you look at the picture in skeeter's attachment it is the exact steps I am doing.
Input 8,
CHS (change sign) to make (-8),
Enter to store the (-8),
Then input 3,
1/x to get the reciprocal of 3 which is (1/3),
y^x to raise (-8) (which is y) to the (1/3) power (which is x).
I don't get what I am doing wrong, it should make sense enough to calculate...