Symbolic Manipulation 258
• Use 9 to create a user-defined secant function, where:
• Use
Define to create a user-defined function h(x), where:
Multi-Statement vs. Single-Statement Functions
Multi-statement user-defined functions should be used as an argument for numeric
functions (such as
nDeriv and nInt) only.
Then find the limit of
sec(x) as x
approaches p/4.
Note: To select limit from the Calc toolbar
menu, press … 3.
Then find a 5th order Taylor polynomial
for
h(x) with respect to x.
Note: To select ‰ from the Calc toolbar
menu, press … 2 (or press 2< on the
keyboard). To select taylor, press … 9.
xsec
1
xcos
-----------=
hx()
tsin
t
---------
0
x
∫
=
Define h(x)=
‰(sin(t)/t,t,0,x).
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