(
) 3
(X)
5
(X)
2
(;)
2
(;) 1
12
7
Differential Calculation Precautions
• Differential calculation can be performed in the COMP Mode only.
• The following cannot be used in
f
(
x
): Pol, Rec, ÷R. The following cannot
be used in
f
(
x
),
a
,
b
, or
tol
:
∫
,
d/dx
,
Σ
.
• When using a trigonometric function in
f
(
x
), specify Rad as the angle
unit.
• A smaller
tol
value increases precision, but it also increases calculation
time. When specifying
tol
, use value that is 1 × 10
-14
or greater.
• If convergence to a solution cannot be found when
tol
input is omitted,
the
tol
value will be adjusted automatically to determine the solution.
• Non-consecutive points, abrupt fluctuation, extremely large or small
points, inflection points, and the inclusion of points that cannot be
differentiated, or a differential point or differential calculation result that
approaches zero can cause poor precision or error.
Σ
Calculations
Function that, for a specified range of
f
(
x
), determines sum
(
f
(
x
)) =
f
(
a
) +
f
(
a
+ 1) +
f
(
a
+ 2) +
⋯
+
f
(
b
).
Natural Display input syntax is
(
f
(
x
)), while Linear Display input syntax
is
∑
(
f
(
x
);
a
;
b
).
a
and
b
are integers that can be specified within the range of -1 × 10
10
<
a
≦
b
< 1 × 10
10
.
Example:
(
x
+ 1) = 20
(MthIO-MathO)
(
)
(X)
1
1
5
20
(LineIO)
(
)
(X)
1
(;) 1
(;) 5
20
36
Summary of Contents for fx-991ZA Plus
Page 96: ...2020 CASIO COMPUTER CO LTD...
