are the mathematics taught in wikipedia accurate?

Well, on the one hand, mathematics does not seem to attract the same kind of fanaticism that political and historical topics get, and supposedly there are some top-notch mathematicians (like Arthur Rubin) working on Wikipedia's mathematical content, and maybe pranksters stay away from those articles.

But even assuming that Wikipedia's mathematical articles are not vandalized like the other articles, the content is not really aimed at teaching, but at showing off.

There's always room for mistakes in every scientific/educative publication (whether on paper, or online).

The advantage of Wikipedia is that its content is under constant review by a lot of very smart people whose purpose is to see that everything is correct and up to date. So while there's a posibility of an error in an article, it would probably get fixed really quick.

From my experience though, I can tell you that studying math from Wikipedia can be hard if you are kind of weak on the subject, since the explanations are very technical. There are lots of other websites on the Internet that could provide an easier approach to math.

Wikipedia does not teach mathematics. Wikipedia is a tertiary level encyclopaedia. As such it can contain articles on historical mathematical ideas that were once considered accurate but have since been disproved. Wikipedia has an article about such ideas...

http://en.wikipedia.org/wiki/List_of_disproved_mat...

As others say, Wikipedia's aim isn't to "teach" mathematics.

Generally, I've found its mathematics coverage to be excellent.

As a reference, however, it often contains more rigorous and abstract detail than you'd need for practical use. For instance, at ordinary school level, you wouldn't need the (ε, δ)-definition of limit ( https://en.wikipedia.org/wiki/%28%CE%B5,_%CE%B4%29... ) to solve a routine limits problem.

For the most part, yes but they are often overly complicated explanations of a normally simple solution.