Calculus

Series

Taylor and McLaurin Series

• wikipedia:Taylor_series

Frequently used series:

$$\sqrt{1+x}$$	0 ≤ x ≤ 1	$$= \sum _{ {n=0} }^{\infty }{\frac {(-1)^{n}(2n)!}{(1-2n)(n!)^{2}(4^{n})}}x^{n}$$	$$= 1+\textstyle {\frac {1}{2}}x-{\frac {1}{8}}x^{2}+{\frac {1}{16}}x^{3}-{\frac {5}{128}}x^{4}+\dots ,\!$$	[1]
$$\frac{1}{1+x}$$	-1 < x < 1	$$= \sum _{ {n=0} }^{\infty }x^{n}$$	$$= 1+x+x^{2}+x^{3}+\cdots \!$$