Replacing Variable in an ODE

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Fahad Ramzan 2021-6-13

评论： SALAH ALRABEEI 2021-6-13

syms T(t)
ode = diff(T,t) == (Lemda-(Sigma.*T));
cond = T(0) == To;
Solution = dsolve(ode, cond)

ERRORS; (Not replacing with a variable)

Undefined function or variable 'Lemda'.

Error in Project (line 11)

ode = diff(T,t) == (Lemda-(Sigma.*T));

Fahad Ramzan 2021-6-13

Yeah!

SALAH ALRABEEI 2021-6-13

Thanks Walter.

Walter Roberson 2021-6-13

syms T(t) Lemda Sigma To

ode = diff(T,t) == (Lemda-(Sigma.*T));

cond = T(0) == To;

Solution = dsolve(ode, cond)

Solution =

Fahad Ramzan 2021-6-13

Are these answers the same? Because the solution goes this way where i made assumptions as following

%Assumptions

% Lemda = constant input source of uninfected cells per day

% Sigma = normal loss rate constant of uninfected cells

% Beta = infection rate constant of uninfected cells per infected cell

% Mu = loss rate constant of infected cells

% Gamma = loss rate constant of free virus

% N = number of virions produced per day per infected cell

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R2017b

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