Texas Instruments TI-89 Voyage 200, User Manual

Page: 269 / 1008

Symbolic Manipulation 269
Finding a Taylor Polynomial
Finding a Taylor Polynomial Finding a Taylor Polynomial
Finding a Taylor Polynomial
Use the
taylor
(
…
9
) function.
Important:
Degree-mode scaling by
p
/180 may cause calculus application results to
appear in a different form.
User-Defined Functions and Symbolic Manipulation
User-Defined Functions and Symbolic Manipulation User-Defined Functions and Symbolic Manipulation
User-Defined Functions and Symbolic Manipulation
You can use a user-defined function as an argument for the TI-89 Titanium ’s built-in
algebra and calculus functions.
Find a 6th order Taylor polynomial for
sin(x)
with respect to x.
Store the answer as a user-defined function
named
y1(x)
.
Then graph
sin(x)
and the Taylor polynomial.
taylor( expression
,
var
,
order
[
,point
]
)
if omitted, expansion point is 0
Graph sin(x):Graph
y1(x)