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amcalde's user avatar
amcalde's user avatar
amcalde
  • Member for 9 years, 10 months
  • Last seen more than 1 year ago
  • Albuquerque, New Mexico
19 votes

10 little dwarves

12 votes

Linear Algebra with functions

11 votes
Accepted

Solving 9 sons puzzle

8 votes
Accepted

Show that $\textbf{$\gamma$}$ lies on a sphere of radius $r$

8 votes
Accepted

Pulling out a constant in double integrals

7 votes
Accepted

Good explanation of $\mathbb{R}^3\rightarrow\mathbb{R}^2$

5 votes
Accepted

$\nabla g\cdot\hat{r}=\frac{\partial g}{\partial r}$ (polar coordinates)

5 votes

Delta type function

5 votes

Prove if 0(a) is odd, show a is a square.

5 votes

Prove that there are infinitely many integer solutions to a diophantine equation

4 votes
Accepted

What happened here (Sigma Sign)?

4 votes

Finding how many numbers are divisible by a prime number

4 votes
Accepted

Closed periodic curve

3 votes
Accepted

Paper suggestion STF tensors (Symmetric Trace Free Tensors)

3 votes

Solving for $a$ in this equation $\sin^a(a) = b$

3 votes

Explicit Form for Coefficients of Extended Hyperbolic Secant Function

3 votes

Ricci tensor from Riemann tensor

3 votes
Accepted

Extremal of a functional $I=\int\limits_0^{x_1} y^2(y')^2dx$

3 votes

Matrix notation in tensor transformations

3 votes
Accepted

Calculate $\int_0^1 f(x) dx$, where $f(x)= \begin{cases} 0 & x= x\in C \\ \frac{2}{7^n} & x= x\not \in C \end{cases} $, with $C$ the Cantor set.

3 votes
Accepted

Prove that $\lim_{\epsilon \rightarrow 0}\int_{\partial B_\epsilon} (φ∇g · n − g∇φ · n) ds = 2πφ(0, 0)$

3 votes

How to explain "why study prime numbers" to 5th Graders?

3 votes
Accepted

Could you give an example of an injective function $f:\mathbb{Z_+}^n\rightarrow \mathbb{Z_+}$ for an integer $n$ s.t. $2\leq n$?

3 votes

Using a given identity to solve for the value of an expression

3 votes

Finding integral of a function

3 votes

Hands of the clock, Revisited.

3 votes

Sequence $\sin^2n$

3 votes

Assumptions in Word Problems (Calculus)

3 votes

Solve second order ODE knowing one of its solutions

2 votes

Complex number equations

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