Plotting a function with an array of x returns one y value

Hey all!

I am trying to plot a specific problem and cannot seem to have it plot correctly

This is currently the code in which i am using. I have tried mulitple iterations as to get it to work. I either recieve a blank plot or a straight line plot.

x = -2:0.1:16;
y = (4*cos(x))/(x + exp(-0.75*x));
plot (x,y)

Either this or

y = (4*cos(x))/(x + exp(-0.75*x));
fplot (y, [-2 16])

And yet the plot should look something like this

Answer 1

[Stephen23]

You won't get very far using MATLAB if you do not learn the difference between array and matrix operations:

https://www.mathworks.com/help/matlab/matlab_prog/array-vs-matrix-operations.html

Tip: if you are not doing linear algebra, then you probably want to use array operations.

x = -2:0.1:16;
y = (4*cos(x))./(x + exp(-0.75*x));
%             ^^ RDIVIDE, not MRDIVIDE
plot (x,y)