Hi,
Here is the corrected code:
function [x, y] = FunctionBeta_Executor(F)
% Note that F function expression is defined via Function Handle: F = @(x, y)(x+y)
% change the function as you desire
h=0.15; % step size (smaller step size gives more accurate solutions)
x = 0:h:3; % x space
y = zeros(1,length(x)); % Memory allocation
y(1) = 5; % initial condition
for i=1:(length(x)-1)
% i=1:(length(x)-1) % calculation loop
k1 = F(x(i),y(i));
k2 = F(x(i)+0.5*h,y(i)+0.5*h*k1);
k3 = F((x(i)+0.5*h),(y(i)+0.5*h*k2));
k4 = F((x(i)+h),(y(i)+k3*h));
y(i+1) = y(i) + (1/6)*(k1+2*k2+2*k3+k4)*h; % main equation
end
figure, plot(x, y) % To see the solution results
end
Now you can test the above function with the followings, e.g. in the command window:
>> F = @(x, y)(x+y);
>> [OutputX,OutputY] = FunctionBeta_Executor(F);
Good luck.
