Badge
| Good Answer | Answer score of 25 or more. This badge can be awarded multiple times. |
Mike Spivey earned this badge 5 times |
jun 16 '12 at 18:03
Proof that $\sum\limits_{k=1}^nk^2 = \frac{n(n+1)(2n+1)}{6}$?
feb 20 '12 at 0:45
Explain $\iint \mathrm dx\mathrm dy = \iint r \mathrm d\alpha\mathrm dr$
jan 8 '12 at 17:12
Anecdotes about famous mathematicians or physicists
oct 12 '11 at 23:16
Can I use my powers for good?
dec 1 '10 at 6:06
Why is $1^{\infty}$ considered to be an indeterminate form
