The Taylor Polynomial

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Example 4. (b) Find the Taylor polynomial of degree n = 6.

First, find the derivatives of f(x).

[Graphics:tp4.txtgr4.gif][Graphics:tp4.txtgr11.gif]

Second, evaluate the derivatives of f(x) at x = 8, and obtain a sequence of constants [Graphics:tp4.txtgr12.gif].

[Graphics:tp4.txtgr4.gif][Graphics:tp4.txtgr13.gif]

Third, substitute the constants [Graphics:tp4.txtgr14.gif] in Taylor's formula.

[Graphics:tp4.txtgr4.gif][Graphics:tp4.txtgr15.gif]
[Graphics:tp4.txtgr4.gif][Graphics:tp4.txtgr16.gif]
[Graphics:tp4.txtgr4.gif][Graphics:tp4.txtgr17.gif]

Use the information in part (a) and find the derivatives up to n = 6.

[Graphics:tp4.txtgr4.gif][Graphics:tp4.txtgr18.gif]

[Graphics:tp4.txtgr4.gif][Graphics:tp4.txtgr19.gif]

 

Want to see a higher degree Taylor polynomial ?

 

(c) John H. Mathews, 1998