Errors; Displaying The Location Of An Error; Clearing The Error Message; Error Messages - Casio fx-115ES PLUS User Manual

E-53
.
Precision is basically the same as that described under "Calculation Range
and Precision", above.
. x', -!./y, 'r, xl, 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.
.
The range for calculation results that can be displayed in "form when using
Natural Display is'Ixl < 10". Note, however, that internal calculation error
can make it impossible to display some calculation results in "form. It also
can cause calculation results that should be in decimal form to appear in
"form.
The calculator will display an error message whenever an error occurs for
any reason during a calculation. There are two ways to exit an error message
display: Pressing @ or @;) to display the location of the error, or pressing
1!9 to clear the message and calculation.
Displaying the Location of an Error
While an error message is displaYed, press @> or @;) to return to the
calculation screen. The cursor will be positioned at the location where
the error occurred, ready for input. Make the necessary corrections to the
calculation and execute it again.
"
When you input 14 + 0 x 2
=
by mistake instead of 14 + 10 x 2
=
em
I
m
-
Math
ERROR
141Z101&!2§J
[ACJ : Cancel
[~J[.J:Goto
Clearing the Error Message
Whilean error message is displayed,press 1!9 to returnto the calculation
screen. Notethat thisalso clears the calculationthat containedthe error.
Error Messages
Math
ERROR
Cause:
.
The intermediate or final result of the calculation you are performing
exceeds the allowable calculation range.
.
Your input exceeds the allowable
input range (particularty when using functions).
.
The calculation you are
performingcontains an illegalmathematical operation (such as division
byzero).
E-54
sin-1x
cos-1x
0;:;::;1
tarr'x
o ;:; ;; 9.999999999x 10'"
sinhx
o ;:i ;; 230.2585092
coshx
sinh-1x o :ii ;:ii 4 .999999999x 10'"
cosh-'x 1 ;:ix ;:;4.999999999x 10'"
tanhx
o :ii :i
9.999999999
x 10'"
tanlr'x
O:ii ;; 9.999999999x 10-'
Iogx/Inx
o < x ;:;9.999999999x 10'"
10'
-9.999999999 x 10":ii X 99.99999999
e'
-9.999999999 x 10";; x;; 230.2585092
Vx
0:iix<1x10''''
X'
<1x10'"
x-'
< 1 x 10'00;xO
3.fX
< 1 x 10'00
xl
o ;; x ,:;69 (x is an integer)
nPr
0;:; n < 1 x 10'., 0 ;:ii r :ii n (n, r are integers)
1 :ii(nV(n-r)I)< 1 x 10''''
nCr
0;; n < 1 x 10'., O;:ii r :ii n (n, r are integers)
1 ,:;nVrl < 1 x 10'''' or 1 ;; nV(n-r)1< 1 x 10'00
Pol(x,y)
,IYI;; 9.999999999x 10'"
:ii 9.999999999 x 10"
o ;:i r:ii 9.999999999x 10"
Rec(r, 8)
8: Same as sinx
lal,b, C< 1 x 10'''' ; 0 ;:;b, C
" "
The displayseconds valueis subject to an error of :I: 1 at
the second decimalplace.
<1x10''''
" "
Decimal... SexagesimalConversions
0'0 '0-;; ::i9999999'59'59-
x> 0: -1 x 10'''' < ylogx < 100
-
x'
x=O:y>O
x < 0: y = n, 2:::'1 (m, n are integers)
However:-1 x 10'''' < ylog < 100
y> O:x 0, -1 x 10''''< 1/x logy< 100
fly
y=O:x>O
y < 0: x = 2n+1, 2n+1(m 0; m, n are integers)
m
However:-1 x 10'''' < 1/x logIYI < 100
able
Totalof integer,numerator,and denominatormust be 10
digits or less (including division marks).
Ranlntl/(a,b) a < b; lal.lbI< 1 x 10'";b
-
a < 1 x 10'.
- --
@;)(or @) [14+1J<2
l!f
-
@> 1 §J r+ IOx2
-;
-.
14
5'