HP 10413 Datasheet Page 117

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117
Referring to functions from other aplets
The Solve aplet can be used in conjunction with any of the functions
available through the MATH menu, and can also reference any equations or
functions defined in other aplets.
Example 3
“Find a so that
3
2
4
a
xxdx−=
Set E1 to:
(
)
2, , ^ 3 , 4AX X X−=
In the NUM view, set A to an initial guess of 3, and position the highlight on
A. Ignore X since it is not really involved except as a temporary variable
during the integration. Press to obtain an answer (eventually) of
2.4495. The delay is caused by the repeated integrations as the calculator
searches for better solutions.
Example 4
“Let X be a random variable, representing the heights of
basketball players. If X is normally distributed, with
184 5
µ
=⋅
and
2
105
σ
=
then find the height which cuts off
the tallest 5% of players.”
The MATH function for the normal distribution is UTPN (see page 282) which
gives the upper-tailed probability.
In the Solve aplet, set E1 to UTPN(184.5,105,X)=0.05
Enter the NUM view, make an estimate, and press
to obtain 201.35cm
Further reading
There are many more ways in which the Solve aplet can
be used in conjunction with the functions available in the
MATH menu. The MATH menu is discussed in detail
starting at page 243, with worked examples which often
use the Solve aplet.
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