Online Algebra Calculator
Many of users do not use powerful Maxima computer algebra system for systematic work, but for ad hoc algebraic calculations – equations, functions, matrixes, etc. only. To do this job, it is not useful to download the whole application from a web site.
Function: powerseries (<expr>, <x>, <a>) Returns the general form of the power series expansion for <expr> in the variable <x> about the point <a> (which may be inf for infinity): inf ==== \ n > b (x - a) / n ==== n = 0

If powerseries is unable to expand <expr>, taylor may give the first several terms of the series.
When verbose is true, powerseries prints progress messages.
(%i1) verbose: true$
(%i2) powerseries (log(sin(x)/x), x, 0);
cant expand
log(sin(x))
so well try again after applying the rule:
d
/ -- (sin(x))
[ dx
log(sin(x)) = i ----------- dx
] sin(x)
/
in the first simplification we have returned:
/
[
i cot(x) dx - log(x)
]
/
inf
==== i1 2 i1 2 i1
\ (- 1) 2 bern(2 i1) x
> ------------------------------
/ i1 (2 i1)!
====
i1 = 1
(%o2) -------------------------------------
2(%o1) true (%i2)