$3\mathrm{.}1$ Consider a rectangular volume with $0\mathrm{.}00x4\mathrm{.}00m,0\mathrm{.}00y5\mathrm{.}00m$ and

$-6\mathrm{.}00z0\mathrm{.}00m$ with charge density ${}_v=40\mathrm{.}0n\frac{C}{m^3}.$

$3\mathrm{.}1\mathrm{.}1$ Use MATLAB or Octave to find the electric field intensity at the point

$P(0\mathrm{.}00,0\mathrm{.}00,20\mathrm{.}0m).$

The variable used for the total electric field intensity vector should be denoted as

EField$\_$your student number, example, EField$\_14798824.$

Take the number of discretization points as $10.$

Provide screenshots of your code and the command window showing the result

received from running your code and then interpret the result as the electric field

intensity vec$(E)$ by writing it out.