Casio fx 991MS User Guide - Page 14

Fraction Operations - how to use t in

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• It is not necessary to enclose a negative exponent within parentheses. sin 2.34 ҂ 10-5 → S 2.34 e D 5 • Example 1: 3҂(5҂10-9) ҃ 1.5҂10-8 3 - 5 e D 9 = • Example 2: 5҂(9ѿ7) ҃ 80 5 - R 9 + 7 T = • You can skip all T operations before =. k Fraction Operations uFraction Calculations • Values are displayed in decimal format automatically whenever the total number of digits of a fractional value (integer + numerator + denominator + separator marks) exceeds 10. • Example 1: 2 ѿ 1 ҃ 13 3 5 15 2 C 3 + 1 C 5 = 13 15.00 • Example 2: 3 1 4 ѿ 1 2 3 ҃ 4 11 12 3 C 1 C 4 + 1 C 2 C 3 = 4 11 12.00 • Example 3: 2 4 ҃ 1 2 2 C 4 = • Example 4: 1 ѿ1.6 ҃ 2.1 2 1 C 2 + 1.6 = • Results of calculations that mix fraction and decimal values are always decimal. uDecimal ↔ Fraction Conversion • Use the operation shown below to convert calculation results between decimal values and fraction values. • Note that conversion can take as long as two seconds to perform. 12

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12
•
It is not necessary to enclose a negative exponent within
parentheses.
sin 2.34
±
10
–5
→
S
2.34
e
D
5
•
Example 1:
3
±
(5
±
10
–9
)
²
1.5
±
10
–8
3
-
5
e
D
9
=
•
Example 2:
5
±
(9
³
7)
²
80
5
-
R
9
+
7
T
=
•
You can skip all
T
operations before
=
.
k
Fraction Operations
u
Fraction Calculations
• Values are displayed in decimal format automatically
whenever the total number of digits of a fractional value
(integer + numerator + denominator + separator marks)
exceeds 10.
1
5
2
3
13
15.
00
13
15
•
Example 1:
³
²
2
C
3
+
1
C
5
=
•
Example 2:
3
³
1
²
4
3
C
1
C
4
+
1
C
2
C
3
=
2
3
1
4
11
12
1
2
•
Example 4:
³
1.6
²
2.1
1
C
2
+
1.6
=
•
Example 3:
²
2
C
4
=
2
4
1
2
•
Results of calculations that mix fraction and decimal val-
ues are always decimal.
u
Decimal
↔
Fraction Conversion
• Use the operation shown below to convert calculation
results between decimal values and fraction values.
•
Note that conversion can take as long as two seconds to
perform.
4
11
12.
00