User Chris K

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Need Help with a coupled SIR model Differential equations

answered Mar 20, 2021 at 15:17

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Convergence plot of Lyapunov exponents

answered May 4, 2022 at 3:48

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Solving this system of differential equation with NDSolve

answered Jun 13, 2022 at 2:31

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(In)Stability of equilibrium points in a vector plot (continued)?

answered Sep 19, 2021 at 14:30

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Piecewise with differential equations

answered Jul 1, 2019 at 11:58

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Extracting data from Plot

answered Jun 9, 2019 at 7:15

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How to get the frequency response with the unstable branches for a nonlinear driven system?

answered Jul 21, 2019 at 12:05

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Plotting maxima within a simplex

answered Jul 22, 2019 at 16:44

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I wanna get a result of i/j . Like 1/3, 1/5, 1/7, 3/5, 3, 5/3... Something like that. But none of my code works

answered Oct 10, 2019 at 12:01

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How to correctly show the slope of a linear part on LogPlot

answered Nov 10, 2019 at 16:37

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<<Wavelets`Wavelets Not Found

answered Nov 20, 2019 at 12:06

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Solve system of ODEs for steady state symbolically

answered Jun 30, 2020 at 15:36

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Calculate the Lyapunov exponent for a driven damped spherical pendulum?

answered Jul 1, 2020 at 12:19

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Errors in Lyapunov exponent code

answered Sep 9, 2020 at 20:35

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How do I graph a vertical isocline?

answered Jan 26, 2020 at 19:17

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Unexpected behavior of `Exclusions` in `ParametricPlot`

answered Mar 31, 2020 at 16:41

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A problem with EcoEvo package

answered Feb 15 at 1:14

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Problem with internal variable of a `Module` which returns the solution of an `NDSolve` command. y$25947 → InterpilatingFunction[…]

answered Apr 8, 2020 at 16:40

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Solve age-structured SIR model (i.e. a PDE) in Mathematica

answered Feb 1, 2020 at 18:36

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Hybrid ODE simulation with very small parameters

answered Sep 24, 2019 at 10:53

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Solving a system of nonlinear equations with parameters

answered Aug 4, 2019 at 20:56

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Expected value of a lognormal distribution

answered Aug 31, 2019 at 14:00

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Why does this FindRoot code only trace one of two roots?

answered Sep 13, 2019 at 21:48

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WhenEvent&NDSolve: How to detect saddle point?

answered Jul 6, 2019 at 9:07

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Cannot solve coupled stochastic differential equations and how to find correlation of solutions?

answered Jul 12, 2019 at 8:03

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Problem finding separatrices for ODE system

answered Jun 17, 2019 at 8:15

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How to Generate a Phase Portrait for a Jacobian Evaluated at Fixed Points

answered Aug 18, 2021 at 21:24

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How do I simplify the equilibrium point to this simplified expression?

answered Nov 15, 2021 at 19:23

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Updating the initial guess by using the previous solution

answered Aug 18, 2022 at 18:59

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Plot f(x),f(y),alpha where f(x) and f(y) are the solutions of a two ODEs system depending on a parameter α

answered Feb 24, 2021 at 16:35

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294 Answers

Need Help with a coupled SIR model Differential equations

Convergence plot of Lyapunov exponents

Solving this system of differential equation with NDSolve

(In)Stability of equilibrium points in a vector plot (continued)?

Piecewise with differential equations

Extracting data from Plot

How to get the frequency response with the unstable branches for a nonlinear driven system?

Plotting maxima within a simplex

I wanna get a result of i/j . Like 1/3, 1/5, 1/7, 3/5, 3, 5/3... Something like that. But none of my code works

How to correctly show the slope of a linear part on LogPlot

<<Wavelets`Wavelets Not Found

Solve system of ODEs for steady state symbolically

Calculate the Lyapunov exponent for a driven damped spherical pendulum?

Errors in Lyapunov exponent code

How do I graph a vertical isocline?

Unexpected behavior of `Exclusions` in `ParametricPlot`

A problem with EcoEvo package

Problem with internal variable of a `Module` which returns the solution of an `NDSolve` command. y$25947 → InterpilatingFunction[…]

Solve age-structured SIR model (i.e. a PDE) in Mathematica

Hybrid ODE simulation with very small parameters

Solving a system of nonlinear equations with parameters

Expected value of a lognormal distribution

Why does this FindRoot code only trace one of two roots?

WhenEvent&NDSolve: How to detect saddle point?

Cannot solve coupled stochastic differential equations and how to find correlation of solutions?

Problem finding separatrices for ODE system

How to Generate a Phase Portrait for a Jacobian Evaluated at Fixed Points

How do I simplify the equilibrium point to this simplified expression?

Updating the initial guess by using the previous solution

Plot f(x),f(y),alpha where f(x) and f(y) are the solutions of a two ODEs system depending on a parameter α