In Exercise 2.8 you wrote a script m-file to automatically identify troughs in gait tracking data…

In Exercise 2.8 you wrote a script m-file to automatically identify troughs in gait tracking data. As well as identifying troughs in such data it can be useful to identify peaks too. Recall that a trough can be defined as a value that is less than the value(s) before and after it. Similarly, a peak can be defined as a value that is greater than the value(s) before and after itExercise 2.8A function takes three numeric arguments representing the coefficients of a quadratic equation and returns two values which are the two roots of the equation. The name of the function is quadRoots1. &

»In Exercise 2.8 you wrote a script m-file to automatically identify troughs in gait tracking data. As well as identifying troughs in such data it can be useful to identify peaks too. Recall that a trough can be defined as a value that is less than the value(s) before and after it. Similarly, a peak can be defined as a value that is greater than the value(s) before and after itExercise 2.8A function takes three numeric arguments representing the coefficients of a quadratic equation and returns two values which are the two roots of the equation. The name of the function is quadRoots1.     Write a suitable prototype or definition for the function. Add an appropriate help and usage section at the top of the function and save it in a suitably named file2.    Add a test to check if the quadratic roots are complex and to return with an error if this is true (see Section 3.3, doc error or help … error).3.    . Complete the function quadRoots and test that it gives the correct results4.    Modify the quadRoots function so that it accepts a single array containing all three coefficients and returns a single array containing the roots 

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