Reciprocals, Squares, and Square Roots
The reciprocal ( x⁻¹ ), square ( x² ), and square root ( √x ) can be considered mathematically as raising a number to a predetermined power. Your calculator performs these functions in one keystroke. The functions are performed immediately and do not affect any pending operations.
Reciprocals
Use the [ 1/x ] key to calculate the reciprocal of any nonzero number in the display.Squares
Use the [ x² ] key to calculate the square of a number in the display if the result is within the range of the calculator.Square Roots
Use the [ √x ] key to determine the square root of a positive number in the display.Example
This example illustrates the operation of the [ 1/x ], [ x² ], and [ √x ] functions.Procedure | Press | Display |
---|---|---|
Clear display | [ CLEAR ] | |
Enter a negative number | 8 [ +/- ] | |
Calculate the reciprocal of the number | [ 1/x ] | |
Calculate the square of the displayed number | [ x² ] | |
Calculate the square root of the displayed number | [ √x ] | |
Change displayed number to a negative value | [ √x ] | |
Display indicates a negative number has no real square root | [ √x ] | |
Clear error condition | [ CLEAR ] |
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