Casio fx-991ES PLUS User Manual
Page 18
E-17
To calculate
'
2
× 3(= 3'
2 = 4.242640687...) to three decimal
places (Fix 3)
(SETUP)(Fix)
3
'
2
4.243
1
4.243
1
e
ln(
x
) = 1
2 (X)C 1 C (
e
)
1
1
2 (X)(,)
1
(,) (
e
)
1
To obtain the derivative at point
x
=
P/2 for the function
y
= sin(
x
)
*
()? (X)
C (P)C 2
0
1
()? (X)
(,) (P) 2
0
x =
1
5
(
x
+ 1) = 20
() (X) 1 C 1 C 5
20
1 () (X) 1 (,) 1
(,) 5
20
To convert rectangular coordinates (
'
2 ,
'
2 ) to polar coordinates
B
(Pol)
r=2,θ=45
1 (Pol)
r= 2
θ
= 45
To convert polar coordinates (
'
2 , 45°) to rectangular coordinates
B
(Rec)
X=1, Y=1
(5 + 3) ! = 40320
5 3 (
x
!)
40320
|2 – 7|
s 2 = 10
@(Abs) 2 7 C 2
10
1
@(Abs) 2 7 2
10
To obtain three random three-digit integers
1000
(Ran#)
459
48
117
(Results shown here are for illustrative purposes only. Actual results will differ.)
8
8
9
9
10
10
11
11
12
12
13
13
14
14