Suppose you have a sentineled, doubly-linked list class as specified in project 2 and an object of that class called my_list. The function below finds and returns the first index of a specified value in that list, but portions have been removed. Using the minimum possible spacing at all in your answers, fill in the missing code. This algorithm does not employ the __iter__ and __next__ methods of the Linked_List class. Also note that this exercise does not include the object names, so your answers should include my_list. as appropriate. Finally, none of your responses should contain colons. As a reminder, the linked list implementation provides the following methods: insert_element_at(value, index) #cannot be used to append append_element(value)
get_element_at(index)
remove_element_at(index)
__len__ #support for the len method to obtain the list's size
def index_of(my_list, val):
for k in :
if :
raise ValueError
and what is the performance?

Now you’re on your own. include a short summary of this section with plots in your lab report. write a matlab script file to do steps (a) through (d) below. include a listing of the script file with your report. 1 the soundsc(xx, fs) function requires two arguments: the first one (xx) contains the vector of data to be played, the second argument (fs) is the sampling rate for playing the samples. in addition, soundsc(xx, fs) does automatic scaling and then calls sound(xx, fs) to actually play the signal. mcclellan, schafer, and yoder, dsp first, 2e, isbn 0-13-065562-7. prentice hall, upper saddle river, nj 07458. c 2015 pearson education, inc. 4 mcclellan, schafer and yoder, signal processing first. prentice hall, upper saddle river, new jersey, 2003. c 2003 prentice hall. (a) generate a time vector (tt) to cover a range of t that will exhibit approximately two cycles of the 4000 hz sinusoids defined in the next part, part (b). use a definition for tt similar to part 2.2(d). if we use t to denote the period of the sinusoids, define the starting time of the vector tt to be equal to t , and the ending time as ct . then the two cycles will include t d 0. finally, make sure that you have at least 25 samples per period of the sinusoidal wave. in other words, when you use the colon operator to define the time vector, make the increment small enough to generate 25 samples per period. (b) generate two 4000 hz sinusoids with arbitrary amplitude and time-shift. x1.t / d a1 cos.2