Matlab code is needed plz

A uniform string of length $l$ and mass per unit length $$ is fixed at $x=0$ and subjected to a transverse force $f(t)=f_{0}cos(t)$ at $x=l$ where $$ is the forcing frequency. Find the resulting vibration of the string assuming that the forcing frequency does not equal to any of the natural frequencies of the string, i$.$e$.,{}_n$ for all values of $n.$ Animate the response of the string by retaining at least $10$ modes.

Ans: $[$:$w(x,t)=\frac{2f_0}{l}{\displaystyle \underset{n=1}{\overset{}{}}}\frac{(-1{)}^{n+1}}{{}^2-{}_n^2}sin(\frac{(2n-1)x}{2l})[cos(t)-cos({}_{n}t)]$