I'm trying to graph a function on an interval, and the graph either doesn't show up or is the wrong graph

x = linspace(-2,16,100);
y = (4*cos(x))./(x.*exp(x.*-0.75));
plot(x,y)

Here is my code, and when i run it, the graph is not the same as when i graphed the funcion on a calculator.

I have to graph F(x) = 4cosx / x+e^(-0.75x) on the interval -2≤x≤16

How would i plot this graph without it giving me errors, and have enough points to make the graph smooth.

Answer 1

[Voss]

x = linspace(-2,16,100);
% y = (4*cos(x))./(x.*exp(x.*-0.75));
y = (4*cos(x))./(x+exp(x.*-0.75));
%                 ^ <---- here: "+" not ".*"
plot(x,y)