Operations: Entering Powers and Roots

As with other operations and functions, there are multiple options for both powers and roots.

Enter the base
Press the ^ key (far right column, below CLEAR).
Enter the exponent. If it is an expression, be sure to put it in parentheses.

There are special keys for some powers:

To square a number, variable, or expression, enter it, then press the x² button.
To cube a number, variable, or expression, enter it, then press MATH-3

Roots
Since roots are just fractional powers, one way is to use the ^ key and be sure to enclose the fraction in parentheses.

Roots can also be done with special function keys.

Square roots:

Press 2nd-x² to access the square root

Enter the number, variable, or expression.

Cube roots:

Press MATH - 4-ENTER

Enter the number, variable, or expression

Other roots:

Enter the INDEX of the root

Press MATH - 5 - ENTER

Enter the number, variable, or expression.

example : Find the sixth root of 64

	Press 2nd-x² to access the square root
	Enter the number, variable, or expression.

	Press MATH - 4-ENTER
	Enter the number, variable, or expression