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stewbasic
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61
Find three non-constant, pairwise unequal functions $f,g,h:\mathbb R\to \mathbb R$...
Jul 10, 2017
36
Solve 6th degree polynomial: $(x^2 - 3x - 4)(x^2 - 5x + 6)(x^2 + 2x) + 30$
Sep 22, 2016
19
Solutions to $f'=f$ over the rationals
Aug 22, 2016
16
If $(A-B)^2=AB$, prove that $\det(AB-BA)=0$.
Apr 19, 2017
14
What is the fewest number of squares required to cover a $11\times13\text{ cm}$ rectangle without overlap?
Sep 9, 2016
11
Functional Equation $f(x+f(x))=x+f(x)$
May 2, 2018
11
Find all functions $f\colon \mathbb{R}^* \to \mathbb{R}^* $ satisfying $f(xyz)=f(xy+yz+xz)\big(f(x)+f(y)+f(z)\big)$ when $xy+yz+xz\ne 0$
Jun 23, 2016
10
Does this operation exist? What's its name?
Oct 10, 2016
7
How to show the Jungle River Metric is Complete
Oct 10, 2017
6
If GCD $(a_1,\ldots, a_n)=1$ then there's a matrix in $SL_n(\mathbb{Z})$ with first row $(a_1,\ldots, a_n)$
Jun 21, 2016
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What's wrong with asking for the next term in a sequence?
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What's wrong with asking for the next term in a sequence?
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What to do about question that ask about the next term in the sequence?
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Object passed to std::move but not moved from?
14
How does lmer (from the R package lme4) compute log likelihood?
9
How does lmer (from the R package lme4) compute log likelihood?
7
Bucket sort in Haskell
6
grub entry for console only