The following Active Code uses a dictionary array of the most common 100 English words. We can use it as a spelling checker! For a more realistic application, you may want to use this repl. it code instead that has a huge dictionary of English words read in from a file and lets you do input with your spell checker. If you use repl, copy in the link for your repl in the Active Code window below to turn it in. Write a print10() method that prints out the first 10 words of the dictionary array. Write a spellcheck() method that takes a word as a parameter and returns true if it is in the dictionary array. It should return false if it is not found. Test your code below by changing the word sent to the spellcheck() method in main. This algorithm is called a linear search where we step through the array one element at a time (here the dictionary one word at a time) looking for a certain element.

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