I wanna implement this function, but it says there is an syntax error..

function y=myfunc(x)

y=(x<0).*(2*exp(x)+(0<=x&x<1).*2+(1<=x&x<3).*(x^2-4*x+5)+(3<=x).*(1+cos(x-3));

endfunction

Answer 1

[John D'Errico]

What langiuage are you using when you end a function with the statement endfunction? Not MATLAB.

As well, IF you had posted the error message, it would have said something about parentheses. So I fixed that.

Finally, it also yells at you, because the function was not properly vectorized. So you wrote this:

y=(x<0).*(2*exp(x)+(0<=x&x<1).*2+(1<=x&x<3).*(x^2-4*x+5)+(3<=x).*(1+cos(x-3));

and I changed it to this:

y=(x<0).*(2*exp(x))+(0<=x&x<1).*2+(1<=x&x<3).*(x.^2-4*x+5)+(3<=x).*(1+cos(x-3));

The differences are important.

fplot(@myfunc,[-5,5])

function y=myfunc(x)
y=(x<0).*(2*exp(x))+(0<=x&x<1).*2+(1<=x&x<3).*(x.^2-4*x+5)+(3<=x).*(1+cos(x-3));
end