4.4

Out of 8 Ratings

Owner's of the Casio Calculator fx-115ES gave it a score of 4.4 out of 5. Here's how the scores stacked up:
  • Reliability

    4.38 out of 5
  • Durability

    4.5 out of 5
  • Maintenance

    4.38 out of 5
  • Performance

    4.5 out of 5
  • Ease of Use

    4.0 out of 5
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E-19
The following shows the range for each of the coefficients (a, b, c, d,
e, f).
1 < a < 100, 1 < b < 1000, 1 < c < 100
0 < d < 100, 0 < e < 1000, 1 < f < 100
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
2'3 × 4 = 8'3
35'2 × 3 = 148.492424
(= 105'2)
150'2
= 8.485281374
25
2 × (3 – 2'5 ) = 6 – 4'5
23 × (5 – 2'3 ) = 35.32566285
(= 115 – 46'3 )
10'2 + 15 × 3'3 = 45'3 + 10'2
15 × (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
cf
'3
+
'2
=
10'3 + 11'2
11
10 110