Casio FX300ES Operating Guide - Page 21

Examples

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Rnd(10÷3) = 3.333 (with Fix 3), both the displayed value and the calculator's internal value become 3.333. Because of this a series of calculations will produce different results depending on whether Rnd is used (Rnd(10÷3) × 3 = 9.999) or not used (10 ÷ 3 × 3 = 10.000). See 14 . GCD, LCM: GCD determines the greatest common divisor of two values, while LCM determines the least common multiple. See 15 . Int: Extracts the integer part of a value. See 16 . Intg: Determines the largest integer that does not exceed a value. See 17 . Note: Using functions can slow down a calculation, which may delay display of the result. Do not perform any subsequent operation while waiting for the calculation result to appear. To interrupt an ongoing calculation before its result appears, press A. Examples 1 sin 30°= 0.5 bv s 30 )= 0.5 sin−10.5 = 30° bv 1s(sin−1) 0.5 )= 30 2 sinh 1 = 1.175201194 cosh-1 1 = 0 wb(sinh) 1 )= 1.175201194 wf(cosh−1) 1 )= 0 3 π /2 radians = 90°, 50 grads = 45° v (15(π)/ 2 )1G(DRG')c(r)= 90 50 1G(DRG')d(g)= 45 4 To calculate e5 × 2 to three significant digits (Sci 3) 1N(SETUP)7(Sci)3 B b 1i(%) 5 e* 2 = 1i(%) 5 )* 2 = 2.97×102 2.97×102 5 log101000 = log 1000 = 3 l 1000 )= 3 log216 = 4 l 2 1)(,) 16 )= 4 B & 2 e 16 = 4 6 To calculate ln 90 (= loge 90) to three significant digits (Sci 3) 1N(SETUP)7(Sci)3 i 90 )= 4.50×100 7 1.2 × 103 = 1200 B 1.2 * 10 6 3 = 1200 (1+1)2+2 = 16 B ( 1 + 1 )6 2 + 2 = 16 (52)3 = 15625 ( 5 x)W= 15625 5 32 = 2 B 16(") 5 e 32 = 2 b 516(") 32 )= 2 To calculate '2 × 3 (= 3'2 = 4.242640687...) to three decimal places (Fix 3) 1N(SETUP)6(Fix)3 B ! 2 e* 3 = 1= 3'2 4.243 b ! 2 )* 3 = 4.243 E-20

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E-20
Rnd(10÷3) = 3.333 (with Fix 3), both the displayed value and the calculator’s
internal value become 3.333. Because of this a series of calculations will
produce different results depending on whether Rnd is used (Rnd(10÷3)
×
3
= 9.999) or not used (10 ÷ 3
×
3 = 10.000). See
14
.
GCD, LCM:
GCD determines the greatest common divisor of two values,
while LCM determines the least common multiple. See
15
.
Int:
Extracts the integer part of a value. See
16
.
Intg:
Determines the largest integer that does not exceed a value. See
17
.
Note:
Using functions can slow down a calculation, which may delay display
of the result. Do not perform any subsequent operation while waiting for the
calculation result to appear. To interrupt an ongoing calculation before its
result appears, press
A
.
Examples
sin 30°= 0.5
bv
s
30
)=
0.5
sin
−1
0.5 = 30°
bv
1
s
(sin
−1
) 0.5
)=
30
sinh 1 = 1.175201194
w
b
(sinh) 1
)=
1.175201194
cosh
–1
1 = 0
w
f
(cosh
−1
) 1
)=
0
π
/2 radians = 90°, 50 grads = 45°
v
(
1
5
(
π
)
/
2
)
1G
(DRG
'
)
c
(
r
)
=
90
50
1G
(DRG
'
)
d
(
g
)
=
45
To calculate
e
5
×
2 to three significant digits (Sci 3)
1N
(SETUP)
7
(Sci)
3
B
1i
(
%
) 5
e
*
2
=
2.97×10
2
b
1i
(
%
) 5
)*
2
=
2.97×10
2
log
10
1000 = log 1000 = 3
l
1000
)=
3
log
2
16 = 4
l
2
1
)
(,) 16
)=
4
B
&
2
e
16
=
4
To calculate ln 90 (= log
e
90) to three significant digits (Sci 3)
1N
(SETUP)
7
(Sci)
3
i
90
)=
4.50×10
0
1.2
×
10
3
= 1200
B
1.2
*
10
6
3
=
1200
(1+1)
2+2
= 16
B
(
1
+
1
)
6
2
+
2
=
16
(5
2
)
3
= 15625
(
5
x
)
W
=
15625
32
5
= 2
B
1
6
(
"
) 5
e
32
=
2
b
5
1
6
(
"
) 32
)=
2
To calculate
'
2
×
3
(= 3
'
2 = 4.242640687...) to three decimal
places (Fix 3)
1N
(SETUP)
6
(Fix)
3
B
!
2
e
*
3
=
3
'
2
1
=
4.243
b
!
2
)
*
3
=
4.243
1
2
3
4
5
6
7