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DotCounter
  • Member for 10 years, 1 month
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20 votes
Accepted

What's wrong with this derivation of the volume of a hemisphere?

7 votes
Accepted

Do I have a misconception about probability?

5 votes
Accepted

Is it possible to convert a complex solution to a real solution?

4 votes

How to treat Dirac delta function of two variable?

3 votes

Why does the initial u and v choices differ for u and v for cyclic integration by parts?

3 votes

Motivations behind finding the maxima and minima of functions?

2 votes
Accepted

Multiply each side of an inequality by a different amount

2 votes
Accepted

How does $\begin{bmatrix} 1 & 0\\ 1 & 0 \end{bmatrix} \cdot \vec{x} = \vec{0} \rightarrow \vec{x} = S\begin{bmatrix} 0\\1 \end{bmatrix}$?

2 votes

Divide by the highest power or divide by the denominator highest power?

2 votes

Are these two graphs isomorphic? Why/Why not?

1 vote

Find zero of sum of 4 modified Bessel functions

1 vote

Exponential growth and bacteria

1 vote

Using Fourier Series to Find Infinite Sum

1 vote

Use polar complex numbers to find multiplicative inverse

1 vote

The value of $i^{-39}$

1 vote
Accepted

'Transforming' this $6\times 6$ complex matrix

1 vote

Calculate overall percentage based on subpercentages

1 vote

Probability of exactly one same-colored pair when drawing six balls from an urn consisting of five same-colored pairs.

1 vote

Is there an asymmetry between our ability to compute $e^x$ for rational $x$ vs for irrational $x$?

1 vote

Does 'constant' mean independent of the main variables?

1 vote

What's the probability of picking up a certain board game tile?

1 vote

Help with understanding calculus problem

1 vote

Why is the area of a square $a^2$ and volume of a cube $a^3$?

1 vote

What does it mean when the stopping point is equal to the index in a summation?

1 vote
Accepted

L'Hospital rule for $\frac{0}{0}\cdot\frac{a}{0}$

1 vote

Probability that randomly picking $4$ out of $90$ numbers yields an ascending sequence?

1 vote
Accepted

Problem on geometric arrangement of lines in space

1 vote
Accepted

How to find the highest power of the divisor of a factorial number

1 vote
Accepted

Extraordinary Numbers

1 vote

Why is the average of $f$, $\bar{f}$, defined as $\frac{1}{b-a}\int_a^b f(x) \mathrm{d}x$?