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when toggle format what by license comment
Apr 21, 2011 at 11:05 answer added Bob Yuncken timeline score: 4
Apr 21, 2011 at 10:30 comment added user11235 $$\int_0^1 \frac 1 {\sqrt{1-2(2x^2-1)t^2+t^4}}dx = \frac {\arctan t} t$$ might work even better.
Apr 21, 2011 at 9:30 comment added darij grinberg By means of power series, this transforms into something like $\int\limits_0^1\dfrac{1}{\sqrt{1-2\left(2x^2-1\right)t+t^2}}dx=\mathrm{arctan}t$ (note that I have changed your $t$ into an $x$). Maybe it's easier this way?
Apr 21, 2011 at 9:06 history asked Bob Yuncken CC BY-SA 3.0