The Maclaurin Polynomial

 

Example 12. (b) Find the Maclaurin polynomial of degree n = 9.

Use the information in part (a) and find the derivatives from n = 6 up to n = 9.

First, find the derivatives of f(x).

[Graphics:mp12.txtgr3.gif][Graphics:mp12.txtgr10.gif]

Second, evaluate the derivatives of f(x) at x = 0, and obtain a sequence of constants [Graphics:mp12.txtgr11.gif].

[Graphics:mp12.txtgr3.gif][Graphics:mp12.txtgr12.gif]

Third, substitute the constants [Graphics:mp12.txtgr13.gif] in Maclaurin's formula.

[Graphics:mp12.txtgr3.gif][Graphics:mp12.txtgr14.gif]

[Graphics:mp12.txtgr3.gif][Graphics:mp12.txtgr15.gif]

[Graphics:mp12.txtgr3.gif][Graphics:mp12.txtgr16.gif]

Want to see a higher degree Maclaurin polynomial ?

 

(c) John H. Mathews, 1998