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zhk
  • Member for 11 years
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10 votes
2 answers
8k views

How to extract data from a contour plot to a text file?

1 vote
2 answers
5k views

How can I produce multiple column data for export?

3 votes
2 answers
3k views

Power::infy: "Infinite expression 1/0. encountered" (ODE Solution using NDSolve)

6 votes
3 answers
2k views

How to input Robin boundary conditions for nonstandard Laplace equation?

6 votes
2 answers
1k views

NDSolve::ntdvdae: Cannot solve to find an explicit formula for the derivatives

7 votes
1 answer
868 views

Free Convective Heat Transfer of Non-Newtonian Power Law Fluids from a Vertical Plate

5 votes
4 answers
807 views

Stiff coupled system of ODE's

8 votes
1 answer
729 views

How to solve a system of PDEs with zip condition?

1 vote
2 answers
719 views

Exporting data from a Plot3D

1 vote
1 answer
674 views

General::ivar: is not a valid variable [duplicate]

5 votes
1 answer
665 views

NDSolve::femcmsd: The spatial derivative order of the PDE may not exceed two

1 vote
1 answer
597 views

Equivalent of Maple `ShowSolution` command in *Matematica* [duplicate]

7 votes
2 answers
566 views

NDSolve Plotting issue

10 votes
1 answer
546 views

Issue with the NDSolve code

1 vote
1 answer
411 views

Solving a system of fractional differential equations

3 votes
2 answers
387 views

A system of ODE's with one less initial condition

8 votes
2 answers
374 views

Why does InverseLaplaceTranform give an incorrect solution?

1 vote
1 answer
355 views

How to create a data table from an expression which take values from NDSolve?

5 votes
2 answers
342 views

How to solve a system of FDE?

2 votes
1 answer
319 views

NIntegrate::inumr: "The integrand `E^(-0.9τ1) DiracDelta[t-τ1] v[t-τ1] x[t-τ1]` has evaluated to non-numerical values "

1 vote
2 answers
310 views

PDE plotting assistance needed

1 vote
1 answer
308 views

How to validate the solution of a system of integro-differential equations?

3 votes
1 answer
289 views

How to implement the finiteness condition for a PDE?

0 votes
1 answer
283 views

Why empty plot (Dsolve solution)?

2 votes
0 answers
274 views

Solving a coupled PDEs using FEM with Robin conditions

0 votes
1 answer
248 views

Using data from NDSolve into a secondary equation

0 votes
1 answer
238 views

Missing curves in a plot [closed]

3 votes
2 answers
234 views

ParametricNDSolveValue::ndsz

0 votes
1 answer
217 views

Plotting boundary value expression against a parameter

1 vote
1 answer
216 views

How to code this iterative process?