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1 vote
2 answers
115 views

Numerical Stiffness Issue in NDSolve for Stiff ODE System: How to Avoid Extrapolation Errors?

I am trying to solve a stiff system of ode differential equations (ODEs) using NDSolve in Wolfram Mathematica. The problem is related to modeling the dynamics of proteins over time, with parameters ...
Athanasios Paraskevopoulos's user avatar
5 votes
3 answers
307 views

Plotting Incidence function of the SIR Model

I am working on the SIR model and I am trying to plot the incidence function on a specific time interval. ...
Athanasios Paraskevopoulos's user avatar
4 votes
2 answers
125 views

ParametricPlot for phase field error (case: Predator-Prey Model) [closed]

so I have a task that need to draw a phase field of predator-prey model, but first I tried my lecturer's coding: ...
Meow Nyan's user avatar
1 vote
0 answers
118 views

Non linear differential equation plot [closed]

Consider the following paper: https://reader.elsevier.com/reader/sd/pii/S0096300306007715?token=2B98E3B12F1E623C99A0787996469AF36E8EF230F6ED5289EAFB60B64CE79A6ACCF74B946A34F3370C65D4FC99018648&...
Math's user avatar
  • 407
2 votes
1 answer
422 views

How to Make a Bifurcation plot of a non linear system of ODEs

I am modelling bacterial growth. I have a quite difficult non linear systems of ODE's. I have 2 bacteria that i'm modelling with competition, as wel as transfer to a different place. so there are 2 ...
Zara's user avatar
  • 21
4 votes
1 answer
96 views

Trying to recreate a plot which tracks the age of individuals inside a compartment model

I am using a compartment model from this paper. I am trying to recreate Figure 6. I will be honest, I have no clue how to approach this. The paper doesn't give information on how to achieve the ...
Luca's user avatar
  • 57
5 votes
1 answer
877 views

Mathematica code for bifurcation diagram in 3D

Good day. I need help with the code in mathematica to plot the bifurcation diagram (e vs z*) or (e vs x*), for the system ...
Patrick's user avatar
  • 99