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DanielV's user avatar
DanielV's user avatar
DanielV
  • Member for 10 years, 9 months
  • Last seen this week
230 votes

"Which answer in this list is the correct answer to this question?"

212 votes

'Obvious' theorems that are actually false

64 votes

Why do negative exponents work the way they do?

62 votes

Is there a law that you can add or multiply to both sides of an equation?

58 votes

Why does $\sqrt{n\sqrt{n\sqrt{n \ldots}}} = n$?

49 votes

Collection of surprising identities and equations.

30 votes

What are some examples of notation that really improved mathematics?

30 votes

Visually stunning math concepts which are easy to explain

23 votes

Besides proving new theorems, how can a person contribute to mathematics?

20 votes

An example of a problem which is difficult but is made easier when a diagram is drawn

20 votes

The myth of no prime formula?

19 votes

Proof that $1+2+3+4+\cdots+n = \frac{n\times(n+1)}2$

17 votes

Maximum board position in 2048 game

17 votes

A logic problem. No need for calculation

17 votes

Mathematician vs. Computer: A Game

17 votes
Accepted

Partial derivative notation

16 votes
Accepted

How to solve a puzzle with numerals

15 votes
Accepted

An Interesting Question I Posed to Myself About $\pi$ as an Average.

15 votes
Accepted

Explanation of recursive function

14 votes
Accepted

expected value of a sum of a 10 sided die

14 votes

Examples of famous problems resolved easily

13 votes

Proof that sum of complex unit roots is zero

13 votes

Interpretation for the determinant of a stochastic matrix?

13 votes

How to prove that the Fibonacci sequence is periodic mod 5 without using induction?

11 votes

What is difference between Fourier Transform and Fast Fourier Transform?

11 votes

What is an example of real application of cubic equations?

11 votes

How to prove Fibonacci sequence with matrices?

11 votes

Derivation of the quadratic equation

11 votes

solve $T(n)=T(n-1)+T(\frac{n}{2})+n$

10 votes

Two circles inside a right angled triangle!

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