Create a MATLAB function script file to calculate the coordinates

$($x$,$ y$)$ of the peak points in the range of x values for the function y $=$ x$^21.$

Define the function with the following $($function definition line$)$:

function $[$yp$,$ xp$]=$ Peak$($xStart$,$ xEnd$)$

where xStart is the starting value of x in the range to find the peak points,

and xEnd is the ending value of x in the range to find the peak points.

yp is the y$-$coordinate of the peak at the end of the signal, and

xp is the x$-$coordinate of the peak at the end of the signal.

Test by calling the Peak function in the Command Window with xStart $=-4$ and xEnd $=4$:

$[$yp$,$ xp$]=$ Peak$(-4,4)$;

The expected result is yp $=-1$ and xp $=0.$

Suggestions:

$-$ Use the command maxPeak $=$ findpeaks$($y$)$ to find the maximum peak points of the signal.

$-$ Use the command minPeak $=-$findpeaks$(-$y$)$ to find the minimum peak points of the signal.

$-$ Use the command xp $=$ double.empty$(1,0)$ to initialize the output xp as an empty row vector.

$-$ Use the command yp $=$ double.empty$(1,0)$ to initialize the output yp as an empty row vector.