33
Each operation is accurate to ±1, in the 10th digit.
However, calculations involving multiple operations
will cause the error to accumulate. This is also
observed with internal calculations involving multiple
operations such as ^(
y
),
x
, ,
∛
,
n r
,
n r
and the
like.
Note that the error may be greater near an inflection
point of a function.
Sequence of Operations
Calculations are carried out in the following order:
1. Coordinate transformations:Pol(
),Rec(
)
2. A-type functions: These are functions where a value
must be entered before you press a function key.
^
>0 : -1
✕
10
100
< log <100
=0 : >0
<0 : = ,
( is an integer)
However, -1
✕
10
100
<1/ log
<100
>0
:
≠
0
-1
✕
10
100
<1/ log <100
=0: >0
<0:
,
(
≠
0, is an integer)
However, -1
✕
10
100
<1/ log
<100
a b/c
The total number of integer, numerator,
and denominator digits must be 10 or less
(including division marks)
SD
(REG)
<1
✕
10
50
,
, , :
≠
0
<1
✕
10
50
,
,
A
,
B
, :
≠
0,1
<1
✕
10
100
x
y
( )
x
y
x
x
y
x
y n
1
2
n
1
+
----------------
n
y
x
y
x
y
x
x
y
y
x
y
x
2
n
1
+
=
1
n
---
n
n
x
y
x
x
σ
n
y
σ
n
x y n
y
x
σ
n
1
–
y
σ
n
1
–
r n
n
x
y x
!
P
C
x y
,
r
θ
,
