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E-13
COMP
•You can omit input of
∆
x, if you want. The calculator
automatically substitutes an appropriate value for
∆
x if
you do not input one.
•Discontinuous points and extreme changes in the value
of x can cause inaccurate results and errors.
Integration
Calculations
The procedure described below obtains the definite integral
of a function.
Use the
F key to enter the COMP Mode when you
want to perform integration calculations.
COMP ............................................................
F 1
• The following four inputs are required for integration
calculations: a function with the variable
x; a and b, which
define the integration range of the definite integral; and
n, which is the number of partitions (equivalent to N =
2
n
) for integration using Simpson’s rule.
d expression P a P b P n F
Note!
•You can specify an integer in the range of 1 to 9 as the
number of partitions, or you can skip input of the number
of partitions entirely, if you want.
•Internal integration calculations may take considerable
time to complete.
•Display contents are cleared while an integration
calculation is being performed internally.
• Example:
∫
(2x
2
+ 3x + 8) dx =
150.6666667
(Number of partitions n = 6)
d
2
p
x
K
+
3
p
x
+
8 P 1 P 5 P 6 T =
5
1