a$)$ Using the following equations and MATLAB's built$-$in function atan$2$d$(),$

write a MATLAB script to convert the vector $(2,-5,4)$ from rectangular

coordinates $(x,y,z)$ to spherical coordinates $(r,,),$ with the angles $$ and $$

in degrees. Output and clearly label the results.

$r=\sqrt[\phantom{2}]{x^2+y^2+z^2}$

$=ta{n}^{-1}(\frac{y}{x})$

$=ta{n}^{-1}(\frac{z}{\sqrt[\phantom{2}]{x^2+y^2}})$