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Hugh's user avatar
Hugh's user avatar
Hugh
  • Member for 10 years, 9 months
  • Last seen more than 4 years ago
57 votes

Explain non-convergent sums to a bright high schooler.

15 votes

Different ways to come up with $1+2+3+\cdots +n=\frac{n(n+1)}{2}$

7 votes

Calculating logs and fractional exponents by hand

4 votes
Accepted

Hint on computing the series $\sum_{n=2}^\infty \frac{1}{n^2-1}$.

3 votes

Roman Numbers - Conversion to decimal number

3 votes

Why is ln(x) bigger than log(x)?

3 votes
Accepted

Find the smallest natural number n such that the decimal expansion of $9^n$ has $< n$ digits?

3 votes

Derivative of $\frac{8x^2}{3\left(x^2+1\right)^3}$ when it equals $0$.

3 votes
Accepted

Is this application of Bayes' theorem correct?

2 votes

Does the law of large numbers hold for a large number of different trials?

2 votes

Expand $\ln(y)$ where $ y=x^3-5x^2+3x+9 $ and find its derivative

2 votes
Accepted

In how many ways can two octopi shake hands?

2 votes

Solve $\lim_{x\to 0} \frac{\sin(2x)-\sin(Ax)}{x+x^3} = A^2$

2 votes

I can't find the equation of a line with the slope of -8 that has one point of intersection with the parabola y=x^2-4x+5

2 votes
Accepted

Non-dimensionalization of a system, what to do if we have to divide by zero?

2 votes
Accepted

how to minimize a summation containing an absolute value

1 vote

evaluating the limit $\lim \limits_{n \to \infty} \frac{(4(n*3^n + 3))^n}{(3^{n+1} (n+1)+3)^{n+1}}$

1 vote

Help reaching the solution to the integral

1 vote
Accepted

If $2^{x + 1} < y$, then what is the largest polynomial in $x$ that cannot be an upper bound for $y$?

1 vote

Average velocity question?

1 vote
Accepted

Technical challenge: Limit of von-Mises distribution approximates normal. How to take the limit?

1 vote

Ticket lottery question

1 vote

If $f(x) = \frac{\cos x + 5\cos 3x + \cos 5x}{\cos 6x + 6\cos4x + 15\cos2x + 10}$then..

1 vote

Standard error of mean when observations are noisy

1 vote

How to extrapolate data using the second order rate equation?

1 vote

How does one get that $1^3+2^3+3^3+4^3+\cdots=\frac{1}{120}$?

1 vote

Why can't we separate fraction powers in euler's formula?

1 vote

How many such numbers are there?

1 vote

does calculating the arithmetic mean of a serie of standar deviation measures make sense?

1 vote

get data to draw a gauss curve