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zhk's user avatar
zhk's user avatar
zhk
  • Member for 10 years, 9 months
  • Last seen this week
6 votes
Accepted

How to solve the differential equation of the form $x\ dx=y\ dy$?

6 votes

Solving an unstable BVP numerically, accurately and efficiently

6 votes
Accepted

Hopf fibration Poincaré surface of section

5 votes

Which root does FindRoot give?

5 votes
Accepted

How to solve Two-Point Boundary Value Problem (Bratu-type equation)?

5 votes
Accepted

Phase lines, vector fields, and fixed points

5 votes

Basins of attraction for the Duffing equation with no forcing term

5 votes

Solving a differential equation involving the square of the derivative

5 votes

Cannot get determinant of matrix

5 votes
Accepted

NDSolve and Contour Plot, 2D, Steady State, Internal Energy Generation

5 votes
Accepted

Gradient of a function at a point

5 votes

How to draw Cantor function in mathematica

5 votes
Accepted

Add points onto box plot

5 votes

How can I add labels to a plot?

5 votes

Unsure why Plot3D is empty?

5 votes

Verifying the solution of a numerically solved ODE

5 votes
Accepted

NDSolve returns a copy of itself

4 votes

3D Phase Portrait of a System of differential equations

4 votes
Accepted

How to calculate E^At for differential equations using mathematica

4 votes
Accepted

What is wrong with my use of Summation?

4 votes

Streamplot of an ODE

4 votes
Accepted

Preserving the colours with Manipulate

4 votes

Problem solving Third order non-linear differential equation in Mathematica

4 votes

Critical points of a system

4 votes
Accepted

Plotting two separate NDSolve solutions together

4 votes
Accepted

Neumann boundary condition for Laplace equation

4 votes
Accepted

How to plot Van der Pol equation's limit cycle?

4 votes
Accepted

NDsolve of partial differential equation - integral of the function

4 votes

How can I get a list of the monomials from a polynomial?

4 votes

How can I get a discrete result from NDSolve?

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