fx-82MS      fx-82TL      fx-9860GII      TI-83

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X²

On a Casio calculator you can compute a square

X2

 

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Example 1

To calculate 3² = 9

					32                    9.
3	X2		=

and you get the same result with

					3xy2                 9.
3	Xy	2	=

as 3² = 3 × 3 = 9

					3×3                  9.
3	×	3	=

 

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Example 2

To calculate (−4)² = 16 where parentheses are needed

										(-4)2               16.
(		(−)	4	)		X2		=

what you can enter as

										(-4)2               16.
(		−	4	)		X2		=

Take care, because −4² = −16

						-42                  -16.
−	4	X2		=

 

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Example 3

To calculate 0² = 0

					02                    0.
0	X2		=

 

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Example 4

To calculate sin² (¾π) = 0,5

SHIFT

π

Ans2                0.5

sin

·   7   5

EXP

=

X2

=

 

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Example 5

To calculate 3² + 4² = 25 

									32+42               25.
3	X2		+	4	X2		=

and continue with √25 = 5

						√Ans                5.
√		Ans		=

 

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