Where do I use the periods when multiplying a function by a Vector?

for my function f(x)= x+(1/x^2-1) it tells me to plot it using vectors [-4,4]

Can anyone help me with figuring out how to use vector multiplication?

Answer 1

[madhan ravi]

x=linspace(-4,4);
f=x+(1./x.^2-1);
plot(x,f)

[madhan ravi]

https://www.mathworks.com/help/matlab/matlab_prog/vectorization.html