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HP -28S Manual Page 124

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In this example you're integrating an expression without empirical
constants, so you could specify 12-digit accuracy. However, the itera-
tive process of numerical integration takes longer for greater accuracy,
so here you'll specify an accuracy of .00001.
~~~~~~~~~~~.-~
1 E - 5
I
ENTER
I
3:
I
EXP (W ..
3+2*X . . . . . 2-
X+4)
I
2:
{ X 0 1 }
1:
.00001
Dalil!iE!llll!:llDlllmIDlmD
Find the integral.
.rn
3:
2:
103.117678153
1:
1. 03086911923E-3
Dalil!iE!llll!:llDlllmIDlmD
The estimated integral is returned to level 2, and an error bound is
returned to level 1.
The value of the integral is 103.118
±
.001. Note that the error bound
returned is approximately the product of the estimated integral and
the accuracy you specified.
10: Calculus
123

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