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
of 75
 
E-68
Functions Input Range
tanhx 0Ϲ ȊxȊ Ϲ9.999999999҂10
99
tanh
1
x 0Ϲ ȊxȊ Ϲ9.999999999҂10
–1
logx/lnx 0x Ϲ9.999999999҂10
99
10
x
–9.999999999҂
10
99
Ϲ x Ϲ 99.99999999
e
x
–9.999999999҂
10
99
Ϲ x Ϲ 230.2585092
'x 0Ϲ x 1 ҂
10
100
x
2
ȊxȊ 1҂
10
50
1/x ȊxȊ 1҂
10
100
;
x G
0
3
'x ȊxȊ 1҂
10
100
x!0Ϲ x Ϲ
69 (
x is an integer)
nPr
0Ϲ n 1҂10
10
, 0Ϲ r Ϲ n (n, r are integers)
1Ϲ {n!/(nr)!} 1҂10
100
nCr
0Ϲ n 1҂10
10
, 0Ϲ r Ϲ n (n, r are integers)
1Ϲ n!/r! 1҂10
100
or 1Ϲ n!/(nr)! 1҂10
100
Pol(x, y)
ȊxȊ, ȊyȊ Ϲ9.999999999҂10
99
x
2
+y
2
Ϲ9.999999999҂10
99
Rec(r,
)
0Ϲ r Ϲ9.999999999҂10
99
θ: Same as sinx
ȊaȊ, b, c 1҂10
100
°’ ” 0 Ϲ b, c
ȊxȊ1҂10
100
Decimal Sexagesimal Conversions
0°0'0"Ϲ ȊxȊ Ϲ9999999°59'59"
x0: –1҂10
100
ylogx100
^(x
y
)
x҃0: y0
x0: y҃n, (m, n are integers)
However: –1҂10
100
ylogȊxȊ100
y0: x G 0, –1҂10
100
1/x logy100
x
'
y
y҃0: x0
y0: x҃2nѿ1, (m G 0; m, n are integers)
However: –1҂10
100
1/x logȊyȊ100
a
b
/c
To tal of integer, numerator, and denominator must be 10 digits or
less (including division marks).
m
2n+1
2n+1
m
•Precision is basically the same as that described under “Calculation Range and
Precision”, above.
•^(x
y
),
x
'y,
3
', x!, nPr, nCr type functions require consecutive internal
calculation, which can cause accumulation of errors that occur with each
calculation.
•Error is cumulative and tends to be large in the vicinity of a function’s singular
point and inflection point.