SymPy Gamma

SymPy:

integrate (1/(1+x**2))

$\int \frac{1}{x^{2} + 1}\, dx$

integrate(1/(x**2 + 1), x)

Plot:

plot(atan(x))

Roots:

solve(atan(x), x)

$x =$

diff(atan(x), x)

$\frac{d}{d x} \operatorname{atan}{\left(x \right)} =$

series(atan(x), x, 0, 10)

See what Wolfram|Alpha has to say.

Want to compute something more complicated? Try a full Python/SymPy console at SymPy Live.