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Questions related from Afonso Dimas Martins
When solving Ordinary Differential Equations in time using, say R, is common to find ourselves in a part of the parameter space that does not allow for correct solutions. For simple models it is...
12 August 2021 6,413 7 View
Context Consider a simplified version of the ODE model presented in Marini et al. 2017 (see section Model calibration of Additional file 1 in that paper). In this model there are two...
29 September 2020 4,549 3 View
It's possible to obtain in Wolfram Mathematica the eigenvalues of a 3x3 non-numeric matrix (i.e. a symbolic, expressions only matrix). However, scaling it to a 4x4 matrix does not seem possible,...
06 June 2020 7,211 8 View
I'm using the package deSolve in R to model a biological ODE system, however I have the problem of, with certain parameters or with certain initial conditions, the ode solver produces negative...
10 December 2018 7,212 6 View
