Top network posts

• 113 Why do engineers use derivatives in discontinuous functions? Is it correct?
• 33 What is the smallest integer greater than 1 such that $\frac12$ of it is a perfect square and $\frac15$ of it is a perfect fifth power?
• 29 To find all $n$ such that $(n-1)!+1$ is a perfect power of $n$
• 27 Taking the automorphism group of a group is not functorial.
• 24 How can I find integers which satisfy $\frac{150+n}{15+n}=m$?
• 20 Minesweeper probability
• 19 What was this small state in the south of France in 1789?
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