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Arturo don Juan's user avatar
Arturo don Juan's user avatar
Arturo don Juan's user avatar
Arturo don Juan
  • Member for 10 years
  • Last seen more than a month ago
6 votes
Accepted

Relationship between the diffusion equation and the heat equation

5 votes
Accepted

Reference request regarding calculus exam

4 votes
Accepted

Root question help needed

3 votes
Accepted

Cauchy's theorem and mathematica disagree? Integral involving branch points.

3 votes

Non-associative, non-commutative binary operation with a identity

3 votes
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Rearrangement of harmonic oscillation formulae

3 votes
Accepted

Determine the number of zeros for $4z^3-12z^2+2z+10$ in $\frac{1}{2}<|z-1|<2$.

2 votes

Avoiding the Integration Constant

2 votes

graph and find symmetry in this equation $y = \tan\left(\frac{\pi}{x}\right)$

2 votes
Accepted

Understanding Spherical coordinates on ellipses.

2 votes
Accepted

How to graphically represent $\ddot x$?

1 vote
Accepted

Complex hermite polynomials as an eigenfunction of an operator?

1 vote
Accepted

Cylindrical Harmonics - Can't Find Bessel Equation

1 vote
Accepted

Contradiction in simple complex integral: should this pole contribute?

1 vote

Calculation of volume integration?

1 vote

Find the 27th derivative

1 vote
Accepted

to find radius of convergence of power series.

1 vote
Accepted

2nd order differential equation with missing y'

1 vote

Is it correct to move x down in $2^x - 2^3 < 0$?

1 vote

How can I find minimum volume using Lagrange multipliers?

0 votes

bound on entire function

0 votes

Ratio Test $S = \sum^\infty_{n=0} \frac{9^n}{(n + 1)*2^{(2n - 1)}}$

0 votes

There is a function which is continuous but not differentiable

0 votes

Is the numerical solution for $\cos(x)=\sqrt{1-\sin^2(x)}, x=1.1$?

0 votes

Find the nth term of the series?

0 votes
Accepted

$f'(5) = \lim_{h\to 0} \frac{2(6+h)^2-72}{ h} $ What is $f(x)$?

0 votes
Accepted

Intersection of Level Curves and a Ellipse at a given angle

0 votes

You construct a rectangular Box with volume K cm$^3$

0 votes

Linear operator from matrix to general presentaition

0 votes

Integral with residues $\int_0^\infty \tfrac{\sin^2(x)}{1+x^4}dx$