Illegal use of reserved keyword "end".

[T,Y] = ode45(@Bqfun1,[0 2],[1 1 -0.01]);

plot (T,Y(:,1),'b','linewidth',1)

function dy1 = Bqfun1(t,y)

   dy1 = zeros(2,1);

   dy1=[y(2);

   y(3)

   -3*y(3)-3*y(2)-y(1)-4*sin(t);
end

With the end in there

Error: File: Test4.m Line: 14 Column: 1

Illegal use of reserved keyword "end".

if I remove the end

Error: File: Test4.m Line: 17 Column: 1

All functions in a script must be closed with an 'end'.

Make up your mind MATLAB.

How do I put the end in for the function without the illegal use of reserved keyword "end."

Answer 1

[Cris LaPierre]

The problem is you forgot the closing bracket when creating dy1.

[T,Y] = ode45(@Bqfun1,[0 2],[1 1 -0.01]);
plot (T,Y(:,1),'b','linewidth',1)

function dy1 = Bqfun1(t,y)
   dy1 = zeros(2,1);
   dy1=[y(2)
       y(3)
       -3*y(3)-3*y(2)-y(1)-4*sin(t)];
end