fx-9860GII      TI-83

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i

On a Casio calculator you can display the imaginary unit i

		i           Z
SHIFT		0

or as

	CPLX			i
OPTN		F3		F1

or via the CATALOG as

CATALOG  P					INPUT
SHIFT		4		i		F1

 

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Example 0

To calculate √-1 = i

			√      r						√-1
	SHIFT		x²		(–)	1	EXE
									i

Be sure to select SET UP Complex Mode a+bi.

 

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Example 1

To calculate i² = −1

		i           Z								i2
SHIFT		0		i		x²		EXE
										-1

or as

CPLX

i

i2

OPTN

F3

F1

i

x²

EXE

-1

 

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Example 2

To calculate i × i = −1

i           Z

i           Z

SHIFT

0

×

SHIFT

0

EXE

i×i

-1

 

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Example 3

To calculate i ⁱ = 0.207879576...

i           Z

i           Z

ii

SHIFT

0

∧

SHIFT

0

EXE

0.2078795764

 

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Example 4

To calculate arg (1 + i) = ¼π in radians

Arg

i

≣

(

1

+

≣

)

EXE

Arg (1+i)

π

 

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Example 5

To transform the complex number 2 + 4i in rectangular form to 2√5∠1.107148718 in polar form

			i	►r∠θ
2	+	4	≣		≣		2+4i►r∠θ		EXE		2+4i►r∠θ
											2√5∠1.107148718

 

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Example 6

To calculate 

					i           Z				1÷i
1	÷		SHIFT		0		EXE
									-i

 

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Example 7

To calculate

		√          r				i           Z
SHIFT		x²		SHIFT		0		EXE		√i

 

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