public decimal GetdSdt(
Iβ β,
Iη η,
Iλ λ,
C19M.M.C.A.Safi2010.Interfaces.Parameters.NaturalDeathRate.Iμ μ,
C19M.M.C.A.Safi2010.Interfaces.Parameters.RecruitmentRateSusceptibleIndividuals.IΠ Π,
Iψ ψ,
double H,
double I,
double N,
double R,
double S)
{
return
(Π.Value.Value.Value
+
ψ.Value.Value.Value
*
(decimal)R
-
λ.GetValue(
β,
η,
H,
I,
N)
.Value
.Value
*
(decimal)S
-
μ.Value.Value.Value
*
(decimal)S);
}
// https://stackoverflow.com/a/55004295
private Func <double, MathNet.Numerics.LinearAlgebra.Vector <double>, MathNet.Numerics.LinearAlgebra.Vector <double> > f(
It t,
C19M.M.C.A.Safi2010.Interfaces.Parameters.HospitalizationRateQuarantinedIndividuals.Iα α,
C19M.M.C.A.Safi2010.Interfaces.Parameters.EffectiveContactRate.Iβ β,
C19M.M.C.A.Safi2010.Interfaces.Parameters.NaturalRecoveryRateInfectiousIndividuals.Iγ γ_1,
C19M.M.C.A.Safi2010.Interfaces.Parameters.RecoveryRateHospitalizedIndividuals.Iγ γ_2,
C19M.M.C.A.Safi2010.Interfaces.Parameters.DiseaseInducedDeathRateInfectiousIndividuals.Iδ δ_1,
C19M.M.C.A.Safi2010.Interfaces.Parameters.DiseaseInducedDeathRateHospitalizedIndividuals.Iδ δ_2,
C19M.M.C.A.Safi2010.Interfaces.Parameters.EfficacyIsolationTreatmentHospitalizedIndividuals.Iη η,
C19M.M.C.A.Safi2010.Interfaces.Parameters.DevelopmentDiseaseSymptomsRateExposedIndividuals.Iκ κ,
C19M.M.C.A.Safi2010.Interfaces.Parameters.AcquireInfectionRateSusceptibleIndividuals.Iλ λ,
C19M.M.C.A.Safi2010.Interfaces.Parameters.NaturalDeathRate.Iμ μ,
C19M.M.C.A.Safi2010.Interfaces.Parameters.RecruitmentRateSusceptibleIndividuals.IΠ Π,
C19M.M.C.A.Safi2010.Interfaces.Parameters.QuarantineRateExposedIndividuals.Iσ σ,
C19M.M.C.A.Safi2010.Interfaces.Parameters.HospitalizationRateInfectiousIndividuals.Iϕ ϕ,
C19M.M.C.A.Safi2010.Interfaces.Parameters.InfectionAcquiredImmunityLossRateRecoveredIndividuals.Iψ ψ,
C19M.M.C.A.Safi2010.Interfaces.Variables.ExposedIndividuals.IE E,
C19M.M.C.A.Safi2010.Interfaces.Variables.HospitalizedIndividuals.IH H,
C19M.M.C.A.Safi2010.Interfaces.Variables.InfectiousIndividuals.II I,
C19M.M.C.A.Safi2010.Interfaces.Variables.QuarantinedIndividuals.IQ Q,
C19M.M.C.A.Safi2010.Interfaces.Variables.RecoveredIndividuals.IR R,
C19M.M.C.A.Safi2010.Interfaces.Variables.SusceptibleIndividuals.IS S)
{
return((T, x) =>
{
return MathNet.Numerics.LinearAlgebra.Vector <double> .Build.Dense(new[] {
(double)E.GetdEdt(
β,
η,
κ,
λ,
μ,
σ,
E: x[0],
H: x[1],
I: x[2],
N: x.Sum(),
S: x[5]),
(double)H.GetdHdt(
α,
γ_2,
δ_2,
μ,
ϕ,
H: x[1],
I: x[2],
Q: x[3]),
(double)I.GetdIdt(
γ_1,
δ_1,
κ,
μ,
ϕ,
E: x[0],
I: x[2]),
(double)Q.GetdQdt(
α,
μ,
σ,
E: x[0],
Q: x[3]),
(double)R.GetdRdt(
γ_1,
γ_2,
μ,
ψ,
H: x[1],
I: x[2],
R: x[4])
});
});
}
