Casio fx-991ES PLUS ユーザーマニュアル

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fx-991ES PLUS

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Ck-1

Ck-2

•

“ ”

B b v V “

”

!9 3 =

•

Ck-3

O

1A

O

1N c

6 ] ' d e

A

1 S

1

S

sin

–1

D

s

sin

–1

D

s

Ck-4

• '

e d

• g

e d ' g

A e d

S

1

A

S

M

STO

1t

RCL

t

STAT

CMPLX

MAT

VCT

7

8

9

FIX

SCI

Math

“ ”

$`

Disp

Math

Ck-5

N w

•

• $ `

c f

• A

N1

N2

N3

N4

N5

N6

N7

N8

1N c

f

1 2

•

“ ” • B

“ ” b “ ”

3 4 5

v V

MathMath

Ck-6

6 7 8

b

b ×

×

 x x   x x 

b ×

c1 c2

c3 1 i 2 ∠  a b i r ∠ 

c4 1 2

c5 1 2

c6] ' “

”

19 1 =

=

× × ×

4 *s 30 )*( 30 + 10 * 3 )=

MathMath

Ck-7

×

π e

=

*

)

4 s 30 )( 30 + 10 * 3 =

•

]

d e • “ ” f

c • “

” e d

•

k

=

“ ”

x x x x °

r g

%

't x ^ "

n

(- )w= x

- w=

' m n m

m

n r n r ∠

×

MathMath

Ck-8

“ ” x

x

3

x ^ ) # " x ^ e ^ ∫ d/dx Σ

'

B

' 2 +! 2 ee 1 +! 2 =

•

×

•

= “ ”

A

d e

“ ”

'

B

1 + 7 ' 6

dddd1Y(INS)

!

1Y

' & 7 1 7 F

1& 8 16 " 1l $ 1i % ! 6

1! # 1w

“ ”

1Y

“I” “ ”

“ ” “ ”

“ ”

MathMath

Ck-9

Y

d e

“ ”

A

“ ” f '

π

B

15( π ) / 6 =

1

6

π

f

0.5235987756

' × ' ' ' B

(! 2 e+ 2 )*! 3 =

'

6 + 2

'

3

f

5.913591358

“ ” f

b

1 / 5 =

0.2

f

1 {5

b

1 - 4 ' 5 =

1 {5

f

0.2

• f

• f •

“ ” 1= =

f π

'

“ ” “ ”

B 2 ' 3 e+ 1 ' 2 =

7

6

' 2 c 3 e+' 1 c 2 =

7

6

b 2 ' 3 + 1 ' 2 = 7 {6

Ck-10

B 4 -1' ( 3 e 1 c 2 =

1

2

b 4 - 3 ' 1 ' 2 = 1 {2

• “ ”

•

1f

<

f

1(

× 150 * 20 1((%)= 30

660 / 880 1((%) =

75

2500 + 2500 * 15 1((%)=

2875

3500 - 3500 * 25 1((%)=

2625

$ $ $

° ´ ˝ ´ ˝ ° ´ ˝

2 $ 20 $ 30 $+ 0 $ 39 $ 30 $=

3°0´0˝

° ´ ˝

2 $ 15 $ 18 $=

2°15´18˝

$ 2.255

$ 2°15´18˝

=

× 3 + 3 S7 (:) 3 * 3 = 6

= 9

Ck-11

1234 = 1234

W 1.234×10

3

W 1234×10

0

123 =

123

1W ← 0.123×10

3

1W ← 0.000123×10

6

f c

1 + 1 = 2

2 + 2 = 4

3 + 3 = 6

f 4

f 2

O

d e

b 4 * 3 + 2.5 = 14.5

dYYYY- 7.1 = 4.9

' “ ” A

d e

× b

3 * 4 =

( ) / 30 =

Ck-12

B

123 + 456 =

789 -G=

3 + 5 1t(STO)y(A)

8

Sy(A)* 10 = 80

ty(A) 8

0 1t(STO)y(A) 0

“ ”

0 1t(STO)l(M) 0

× 10 * 5 l 50

10+ 5 1l(M–) 15

tl(M) 35

A

!9 2 =

“ ”

π

π π

e e e

−1 −1 −1

1

−1 −1 −1

w

2

MathMath

Ck-13

r g r g

1G '

3

$ %

“ ” “

”

4

l a b

a &

“ ”

5

e

6

x

2

x

3

x^ ) # " x

−1

“ ” “ ” x^ ) # "

7

•

x

2

x

3

x^ x

−1

ww w

2

w d

w B •

x

2

x

3

x

−1

“ ”

∫

a

b

f

(

x

)

“ ”

∫

(

f

(

x

)

a b tol tol

×

tol “

” “ ”

8

F “ ”

dx

d

(

f

(

x

))



x

=

a

“ ”

dx

d

(

f

(

x

)

a tol tol

×

tol

“ ”

9

8 f x

Σ

(

f

(

x

))

x

=

a

b

f a f a f a f b

“ ”

Σ

(

f

(

x

))

x

=

a

b

“ ” Σ f x

a b a b ×  a  b  ×

10

f x a b ∫ d dx Σ

11

x y r  r  x y

r  x y



  

Ck-14

x

12

“ ” “

”

13

“ ”

14

a b a b

15

nPr nCr n r n r

16

×

17

A

• ,1

• f x a b tol ∫ d dx Σ

• f x

• tol tol

×

•

f x  a  x  b

∫

0

1

x

•

f x

•

tol tol

•

f x

S

∫∫ ∫

a

b

f(x)dx =

a

c

f(x)dx + (–

c

b

f(x)dx)

S

∫∫ ∫

a

b

f(x)dx =

a

c

f(x)dx + (–

c

b

f(x)dx)

S

Ck-15

bv s 30 )= 0.5

−1

bv 1s(sin

−1

) 0.5 )= 30

wb(sinh) 1 )= 1.175201194

–1

wf(cosh

−1

) 1 )= 0

π v

(15 π / 2 )1G(DRG')c

r

= 90

50 1G(DRG')d

g

= 45

e

5

×

1N(SETUP)7(Sci)3

B 1i(%) 5 e* 2 =

2.97×10

2

b 1i(%) 5 )* 2 = 2.97×10

2

l 1000 )= 3

l 2 1)(,) 16 )= 4

B & 2 e 16 = 4

e

1N(SETUP)7(Sci)3 i 90 )= 4.50×10

0

×

3

B 1.2 * 10 6 3 = 1200

2+2

B( 1 + 1 )6 2 + 2 = 16

2 3

( 5 x)1w(x

3

)= 15625

B 16(") 5 e 32 = 2

b 516(") 32 )= 2

'

×

'

1N(SETUP)6(Fix)3 B ! 2 e* 3 =

3

'

2

1=

4.243

b ! 2 )* 3 = 4.243

∫

1

e

ln( x ) = 1

B 7iS)(X))e 1 eS5 e = 1

b 7iS)(X))1)(,)

1 1)(,)S5(

e ))= 1

a

b

f(x)dx =

a

x

1

f(x)dx +

x1

x

2

f(x)dx +

.....

∫∫∫

x4

b

f(x)dx

∫

+

a

b

f(x)dx =

a

x

1

f(x)dx +

x1

x

2

f(x)dx +

.....

∫∫∫

x4

b

f(x)dx

∫

+

11

22

33

44

55

66

77

88

Ck-16

x π y x V

B 17(F)sS)(X))

e'15(π )e 2 =

0

b 17(F)sS)(X))

1)(,)15(π )' 2 )=

0

Σ

x

=

1

5

x

B 1&(8)S)(X)+ 1 e 1 e 5 = 20

b 1&(8)S)(X)+ 1 1)(,) 1

1)(,) 5 )=

20

' '

v

B 1+(Pol)! 2 e1)(,)! 2 e)=

r=2,  =45

b 1+(Pol)! 2 )1)(,)! 2 ))= r= 2

 = 45

'

v

B 1-(Rec)! 2 e1) (,) 45 )=

X=1, Y=1

( 5 + 3 )1E(x !)= 40320

×

B 1w(Abs) 2 - 7 e* 2 =

10

b 1w(Abs) 2 - 7 )* 2 = 10

1000 1.(Ran#)= 459

= 48

= 117

S.(RanInt) 1 1)(,) 6 )= 2

= 6

= 1

10 1*(n Pr ) 4 = 5040

10 1/(n Cr ) 4 = 210

×

× b

1N(SETUP)6(Fix)3 10 / 3 * 3 = 10.000

10(Rnd) 10 / 3 )* 3 = 9.999

99

1010

1111

1212

1313

1414

1515

1616

1717

Ck-17

N2

a b i r ∠ 

i i i a b i

( 2 + 6 W(

i ))/( 2 W(i ))= 3– i

∠

' '

i Bv a b i

2 1-(∠ ) 45 =

'

2

+

'

2

i

' '

i ∠ Bv r ∠ 

! 2 e+! 2 eW(

i )= 2 ∠ 45

•

•    

• “ ” a b i r



i

B a b i

( 1 -W(

i ))E=

1

2

1

2

+

i

i i B

( 1 +W(

i ))w+( 1 -W(i ))w= 0

i a bi

12(CMPLX)2(Conjg) 2 + 3 W(

i ))= 2–3 i

i Bv

1w(Abs) 1 +W(

i )=

'

2

12(CMPLX)1(arg)1+W(

i ))= 45

'r ∠  'a b i

' '

i ∠ ∠

' '

i Bv

! 2 e+! 2 eW(

i )12(CMPLX)3('r ∠  )= 2 ∠ 45

2 1-(∠ ) 45 12(CMPLX)4('a +b i )=

'

2

+

'

2

i

Ck-18

N1 N2

• i

•

Ss

3 S-(A)+Se(B)

s

5 = 10 =

s =

7 = 20 =

A

i

'

i

'

i r ∠  v

N2(CMPLX)

S-(A)+Se(B)W(

i )

12(CMPLX)3('

r ∠  )

s! 3 )= 1 =

s = 1 =! 3 )=

A

s A “

”

MathMath

Math

CMPLX

Math

CMPLX

Ck-19

N1

•

2

•

• ∫

d dx Σ

y ax b x y a b

Sf(Y)Ss(=)S-(A)

S)(X)w+Se(B)

1s(SOLVE)

0 = 1 =- 2 =

1 =

A

1s A

“ ”

•

y x y e

x

y

'

x

MathMath

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