Casio fx-115ES User Manual
Page 20
E-18
Example:
The underlined areas in the above examples indicate what caused
decimal form to be used.
Reasons why the results of the examples are displayed in
decimal form
- Value outside of the allowable range
- More than two terms in the calculation result
• Calculation results displayed in ' form are reduced to a common
denominator.
•
c
′ is the least common multiple of
c
and
f
.
• Since calculation results are reduced to a common denominator,
they are displayed in ' form even if coefficients (
a
′,
c
′, and
d
′)
are outside the corresponding ranges of coefficients (
a
,
c
, and
d
).
Example:
• The result is displayed in decimal form even when any intermediate
result has three or more terms.
Example: (1 + '
2 + '
3 )(1 – '
2 – '
3 )(= –4 – 2'
6 )
= –8.898979486
• If a term is encountered during the calculation cannot be displayed
as a root (') form or a fraction, the calculation result is displayed
in decimal form.
Example: log3 + '
2 = 1.891334817
2'
3
Ч 4 = 8'
3
35'
2
Ч 3 = 148.492424
(= 105'
2)
150'
2
= 8.485281374
25
2
Ч (3 – 2'
5 ) = 6 – 4'
5
23
Ч (5 – 2'
3 ) = 35.32566285
(= 115 – 46'
3 )
10'
2 + 15
Ч 3'
3 = 45'
3 + 10'
2
15
Ч (10'
2 + 3'
3 ) = 290.0743207
(= 45'
3 + 150'
2 )
'
2 + '
3 + '
8 = '
3 + 3'
2
'
2 + '
3 + '
6 = 5.595754113
' form
decimal form
' form
decimal form
' form
decimal form
' form
decimal form
a'
b
+
d'
e
c
a
′
'
b
+
d
′
'
e
c
′
f
→
'
3
+
'
2
=
10'
3 + 11'
2
11
10
110