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GEdgar earned this badge 4 times
apr 24 at 1:52
What is the coefficient of $x^{2k}$ in the $n$-th iterate, $f^{(n)}(x)$, if $f(x)=1+x^2$?
sep 26 at 17:57
field generated by a set
jul 23 at 1:41
Solving differential equation $y^{(5)} + 2y^{(3)} + y' = 2x + \sin(x) + \cos(x)$
oct 5 '11 at 13:59
Does every Cauchy net of hyperreals converge?

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