Command window | My Assignment Tutor

(a) Start up MATLAB. In thecommand window type x = -1:0.1:1 and then execute each of the following statements by typing them in and pressing return: sqrt(x) cos(x) sin(x) 2./x x. 3 plot(x, sin(x.^3)) plot(x, cos(x.^4)) Examine the effects of each statement carefully. (b) Execute the following and explain the results: x = [2 3 4 5] y = -1:1:2 x.^y x.*y x./y (a) Set up the matrix A = [1 5 8;84 81 7;12 34 71] in the command window and examine the contents of A(1,1), A(2,1), A(1,2), A(3,3), A(1:2,:), A(:,1), A(3,:), and A(:,2:3). (b) What do the following MATLAB statements produce? x = 1:1:10 z = rand(10) y = [z;x] c = rand(4) e = [c eye(size(c)); eye(size(c)) ones(size(c))] d = sqrt(c) t1 = d *d t2 = d. *d

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