Good Day Sir/Ma'am. May i ask what is the meaning of ode45 here and @dfunc? --------> [t,x] = ode45(@dfunc, tspan, x0);

Thank you very. Hoping for response.

[Stephen23]

See also earlier question:

https://www.mathworks.com/matlabcentral/answers/389756-in-this-code-plot-t-ac-3-r-t-ac-2-g-t-ac-1-b-what-is-the-value-essence-of-the

@Warda Panondi: the MATLAB documentation is free for everyone to read.

Answer 1

[James Tursa]

ode45 is a numerical integration routine

doc ode45

@dfunc is a function handle that points to a function called dfunc. This function takes two inputs, time and current state vector, and outputs the derivative of the state vector at that particular time.

doc function_handle

[Warda Panondi]

Thank you very much sir James.

Answer 2

[Mark Alison]

I am about to ask such matter.