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jawheele's user avatar
jawheele's user avatar
jawheele
  • Member for 7 years, 7 months
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32 votes
Accepted

Why $(-2)^{2.5}$ isn't equal to $((-2)^{25})^{1/10}?\,$ [Fractional powers of negative numbers]

9 votes

Find function $f(x)$ satisfying $\int_{0}^{\infty} \frac{f(x)}{1+e^{nx}}dx=0$

7 votes
Accepted

If $f(x)=f(2x)$, then how do we get the solution $f(x)=\sin ( \log _a (x))$ through computation?

6 votes

How to solve $\ln t = t-1$ to get $t=1$?

6 votes

The sum of $3$ real numbers is known to be zero. If the sum of their cubes is $e^{\pi}$ , what is their product equal to?

4 votes
Accepted

Is there a one-to-one correspondence between vector-valued differential forms and real-valued forms?

4 votes
Accepted

What does $\int_C \mathbf{r} \cdot d\mathbf{r}$ mean?

3 votes

Vector field invariant under certain diffeomorphisms

3 votes
Accepted

writing functions as a power series

3 votes
Accepted

How do we go from $d(x,x') \le d(x,y) +d(y,y') +d(y',x')$ to $d(x,x') \ge d(y,y') -d(x,y)-d(y',x')$?

3 votes

Evaluating the integral $\int_0^\infty \frac{\sin x} x \,\mathrm dx = \frac \pi 2$?

3 votes
Accepted

Optimization : is it possible to replace 2 Lagrange multipliers by a single one.

3 votes

If the derivative of tensors are not generally tensors, why does vector calculus work?

3 votes

Roots of the equation $e^{x-1}+x-2=0$

2 votes
Accepted

Show that a map is a submersion

2 votes

The boundary of union is the union of boundaries when the sets have disjoint closures

2 votes
Accepted

what value does $\sum_{n=1}^{\infty} \frac{(-8)^{n-1}}{9^n}$ converge to?

2 votes

Clarification on some surface integrals in an MSE answer

2 votes

Showing volume and surface integration is unaffected by the singularity at $\mathbf{r'}=\mathbf{r}$

2 votes

Is there a solution to this problem?

2 votes
Accepted

Can every open subset of a smooth manifold be the support of a chart of the manifold?

2 votes

Why must delta be defined in terms of epsilon only?

2 votes

Exterior Derivative of One-Form vs Torsion of Connection

1 vote

Question from an exam in real analysis.

1 vote

Prove epsilon delta continuity for 4 real numbers.

1 vote

How exactly do tensor products correspond with "tensors" as understood in tensor calculus & mathematical physics?

1 vote
Accepted

How can I find the maximum values of a transformation of the unit sphere?

1 vote
Accepted

Let A and B$∈R^{2×2}$ are symmetric matrices, $x^Tx=1,x∈R^2$, can we prove that the trajectory of ($x^TAx$,$x^TBx$) is an ellipse?

1 vote
Accepted

Prove value of Lie bracket at point $p\in \partial M$ is indenpendent of extension

1 vote
Accepted

An inconsistency between flux through surface and the divergence theorem