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Mathematics
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graydad

A retired mathematician that has become a software developer. I still have a soft spot for mathematics.

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  • Member for 4 years, 9 months
  • 2,441 profile views
  • Last seen Dec 4 '18 at 4:17

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Top posts (612) All Questions Answers | Votes Newest

30 What's wrong with l'Hopital's rule? May 17 '15
21 What is an example of function $f: \Bbb{N} \to \Bbb{Z}$ that is a bijection? Oct 9 '14
19 Why/How does this sqrt term work? The inverse of a fraction in a sqrt Mar 25 '15
15 Easy math proofs or visual examples to make high school students enthusiastic about math Jun 24 '15
11 What to answer when people ask what I do in mathematics Feb 8 '15
10 Chain rule with triple composition Nov 14 '14
10 Doubt about the domain in logarithmic functions. May 26 '15
10 The coefficient of $x^9$ in the expansion of $(1+x)(1+x^2)(1+x^3)\cdots(1+x^{100})?$ Oct 11 '15
9 Why is the cube-root of $x$ 'odd'? Aug 27 '14
9 Why is $-5^2=-25$? Mar 9 '15
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