Re: [Scilab-users] Corona modelling

2020-03-29 Thread Tim Wescott
This will be a straightforward application of the ODE solver. Type "help ode" for more detail. You'll make a function that takes the vector x = [S; I; R] as an argument and returns [S'; I'; R']. Then you'll call that function with some starting x and let it play out. You can speed up

[Scilab-users] Corona modelling

2020-03-29 Thread Heinz Nabielek
Colleagues: is there an straightforward Scilab approach for solving the three coupled nonlinear differential equations of first order given by the Standard Model of Epidemics? S= number Susceptible: S'=-aSI I= number Infected:I'=aSI - bI R= number Recovered:

Re: [Scilab-users] Question

2020-03-29 Thread Stéphane Mottelet
Hello, filter() has the same api as Matlab’s filter() ans uses Matlab convention for polynomial coefficients, which is the reverse of Scilab convention. S. > Le 29 mars 2020 à 12:00, Federico Miyara a écrit : > >  > Dear all, > > Some t¿ime ago I observed fo a previous version, that the

[Scilab-users] Question

2020-03-29 Thread Federico Miyara
Dear all, Some t¿ime ago I observed fo a previous version, that the function filter() required that polynomials, when expressed as vectors, have the coefficients in decreasing power order while poly() required them in increasing order. I'm asking whether this has been modified or not (the