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Vandermonde's user avatar
Vandermonde's user avatar
Vandermonde
  • Member for 13 years, 10 months
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29 votes

Let $f:\mathbb{R}\longrightarrow \mathbb{R}$ a differentiable function such that $f'(x)=0$ for all $x\in\mathbb{Q}$

20 votes

Fake induction proof

6 votes

Examples where it is easier to prove more than less

3 votes

Sets of integers in which every element is the sum of two others

3 votes

Limit of a sequence of real numbers

3 votes

How can I properly isolate the variables for this differential equation?

2 votes

Induction versus Natural Numbers

2 votes
Accepted

Is there a name (and use) for an average based on the unique values of a set of data?

1 vote

2 people on a random walk

1 vote

Is a function differentiable on a punctured interval differentiable on the whole interval?

1 vote

Is it impossible to perfectly fit a polynomial to a trigonometric function on a closed interval?

0 votes

Easy example why complex numbers are cool