$($c$)$ Write a MATLAB script MuscleTSolve that performs the following:

$($i$)$ uses MuscleTemp to obtain a plot of $T$ vs$.r$ when $N=200,k=80,R=0\mathrm{.}01$ and $L=0\mathrm{.}04.$

$($ii$)$ calculates the average temperature

Ave $=\frac{1}{L-R}{\displaystyle \underset{R}{\overset{L}{}}}T(r)dr$

using the Trapezium Rule.