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Joce
  • Member for 10 years, 1 month
  • Last seen more than a week ago
4 votes
Accepted

Determining the maximum value for the solution of this delay differential equation?

4 votes

How to find the range of zeroes in a polynomial

4 votes

Can you have negative sets?

3 votes
Accepted

Showing a function is a function of only a variable $\eta(x,t)$

3 votes
Accepted

Lagrange interpolation: Evaluation of error in interpolation

3 votes

A curve consists of all of the points $(x, y)$ in the Cartesian plane with the sum of the distances from $(x, y)$ to $(1, 0)$ and to $(−1, 0)$ is 4

2 votes
Accepted

Show that $\int\int\limits_A\left(\frac{\partial f}{\partial x}+ \frac{\partial g}{\partial y}\right) dx dy=0$

2 votes

Intuitively, why is the solution to Dirichlet Problem on open disk a convolution?

2 votes
Accepted

Check if plane intersects cuboid

1 vote

What is wrong with interpolation?

1 vote
Accepted

Determine the slopes of a curve, when we know the tangent vectors of the curve

1 vote

Problem about the difference of two power

1 vote

Dividing ten people into five two-person groups.

1 vote

Estimating the total cost of purchasing every item in a grocery store

1 vote
Accepted

Find the boundary of certain set

1 vote
Accepted

What approaches faster?

1 vote

Prove that there exists no scalar field which has derivative $> 0$ at a fixed point wrt every direction

1 vote

Why does $(a, f(a))$ in this graph below not have a tangent line?

1 vote

Can you draw a curve that captures light?

1 vote
Accepted

Calculating the point of reflection off a sphere

1 vote
Accepted

Evaluating integral limit in two ways gives different limits

1 vote

Simple question about dividing by zero, $y=\frac{x}{x}$ when $x=0$

1 vote

How can I prove every positive real number has square root?

1 vote
Accepted

Is the condition $\;P(X^2>1|X>0)\;$ the same as $\;P(X>1)\;$?

1 vote
Accepted

Why does $\frac{\partial u}{\partial n}=0 \implies \frac{\partial u}{\partial r}=0$?

1 vote

Index function gradient in 3D

1 vote

Example of a function that is pseudo concave but not concave ( in three dimensions )

1 vote
Accepted

Predicting when and where 2 points with non-constant velocity will collide

0 votes

If I have a circumference and a rectangle inscribed into it, is the diagonal of the rectangle equal to the diameter of the circumference?

0 votes

Proving there must exist a maximum value in a continuous interval