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

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Parentheses

On a TI calculator you can enforce an order in the operation by using parentheses

(

and

)

 

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Example 1

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

(		(–)	2	)		∧	4	ENTER		(-2)^4
										16

as -2⁴ = -16

(–)	2	∧	4	ENTER		-2^4
						-16

 

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Example 2

To convert cartesian coordinates (x = 1, y = √3) to polar coordinates (r = 2, θ = 60°), first show r

ANGLEB

√      I

2nd

MATRX

5

R►Pr(

1

٬

2nd

x²

3

ENTER

R►Pr(1,√3

2

and then show θ

ANGLEB

√      I

2nd

MATRX

6

R►Pθ(

1

٬

2nd

x²

3

ENTER

R►Pθ(1,√3

60

where the right-hand parentheses may be omitted.

 

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Example 3

To calculate 4 × 7 as 4 (7) = 28

4	(	7	ENTER		4(7
					28

 

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Example 4

To calculate (−1)⁰ = 1

(		(–)	1	)		∧	0	ENTER		(-1)^0
										1

but be careful, because −1⁰ = −1

(–)	1	∧	0	ENTER		-1^0
						-1

 

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Example 5

To calculate | 2 − 7 | × 2 = 10

MATH	►	1	abs(	2	−	7	)		×	2	ENTER		abs(2-7)∗2
													10

 

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