If a, b, c, and d are numbers, how many rows will the matrix generated by this command have (pay attention to details): [a, b; a+b, sqrt(b); c, d]' 3 1 None. This expression will result in an error. 2
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If a, b, c, and d are numbers, how many rows will the matrix generated by this command have (pay attention to details):
[a, b; a+b, sqrt(b); c, d]'
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- Write R commands to create a 4 × 4 matrix named m whose elements are complex numbers. The real part of each element is the row number; the imaginary part of each element is the column number. Compute the matrix that results from multiplying each element of m by its conjugate. (Hint: First, find the products of all elements and their conjugates; Second, list all results numbers in a 4 × 4 matrix.)If a and b are two non-empty numerical row vectors (of the same length L) present in Matlab Workspace, what command would you use to create a new 2 x L matrix, called d, that is a combination of a and b (a elements are in the first row and elements of b are in the second row)? d = transpose(a, b) d = a _ b d = [a; b] d = a .* (1/b)1. Which command will return the corner elements of a 10-by-10 matrix A? A. A([1,end], [1,end])B. A([1,1], [end,end])C. A({[1,1], [1,end], [end,1], [end,end]})D. A(1:end, 1:end) 2. Which command will return the fraction of positive numbers in a 10-by-10 matrix A? A. A(A > 0)/AB. numel(A > 0)/numel(A)C. sum(A > 0)/prod(size(A))D. nnz(A > 0)/numel(A) 3. Which command will delete (completely remove) the last cell of a cell-array C? A. C{end} = [];B. C[end] = [];C. C(end) = [];D. C{end} = {[]}; 4. Which command will create a plot of acceleration vs. time (i.e., a vector time on the x-axis and a vector acceleration on the y-axis)? A. plot(time, acceleration)B. plot(acceleration, time)C. plot([time, acceleration])D. plot([acceleration, time]) 5. Which command will give the standard deviation for each column in a 10-by-5 matrix Z? A. std(Z(:))B. std(std(Z))C. std(Z(1:5, :))D. std(Z) How to answer above questions based on Matlab!
- Which of the following creates a matrix with 5 columns and 6 rows? n = size(5,6); y = ones(5,6); a = size(6,5); x = zeros(6,5);Q1 Consider X to be a 100-by-100 matrix. Which of the following commands will extract elements common to every 2nd row (starting from the 2nd row) and every 3rd column (starting from the 1stcolumn)? Select one: a. X(2:2:end, 1:3:end) b. X[1:2:end, 1:3:end] c. X([2:, 3:]) d. X([2:2:end, 1:3:end]) e. X(1:2:99, 1:3:96) Q2 Which of the following syntax performs the forward elimination process in Gaussian elimination? Here r represents the row index, c is the column index and n represents the number of rows in the augmented matrix. Select one: a. Aug(r,:) = Aug(r,:) - factor*Aug(c,:) b. Aug(r,c) = Aug(r,c) - factor*Aug(c,:) c. Aug(r,[c n+1]) = Aug(r,[c n+1]) - factor*Aug(r,[c n+1]) d. Aug(r,n+1) = Aug(r,n+1) - factor*Aug(c,:) e. Aug(r,c) = Aug(r,:) - factor*Aug(c,c) Clear my choice Q3 Which syntax will solve for the differential equation using the in-built function ode45() with a time interval of 0 to 10 and an initial condition of 0?…Assuming that you have a non-empty SQUARE matrix B of size n (assume n is ODD and n > 2 ; assume n is a variable present in Workspace) available in your Workspace, which Matlab command will not "extract" the center column of B? B(:,floor(n/2)) B(:,ceil(end/2)) B(1:end,ceil(mean(1:n))) B(:,ceil(length(B)/2))
- 28) Give an example to illustrate the difference between the linspace function and the colon operator.29) A = [2; 7; 4] write this Matlab command in a different way.30) Create a 4 by 3 matrix W and fill it with thefollowing values M =12 71 44 1 5 65 6 5 4 2 5 6231) Create a 4 by 3 matrix R and fill it with thefollowing values M =3 2 43 11 4 65 21 65 7 21 23 9Write a program that fills a 5 x 5 matrix with the following data:i. Upper left triangle with -1ii. Lower right triangle with 1iii. Right to left diagonal with 0Display the matrix on the screen.Which of the following code segments will use vectorisation to reduce the time taken to calculate the sum of two NumPy arrays: A and B? (Select ALL that apply) 1. ) C = np.empty(A.size) for index in range(A.size): C[index] = A[index] + B[index] 2.) A.tolist()+B.tolist() 3.) np.sum([A, B]) 4.) A+B
- You have been provided with the 4-by-4 matrix below:2 7 4 33 4 5 46 8 3 97 9 7 2Write a Java application using NetBeans that reads the above 4-by-4 matrix and displays the sum of all its elements on the major diagonal. output: Enter the matrix elements per each row: 2 7 4 33 4 5 46 8 3 97 9 7 2 Sum of the elements in the major diagonal is 11.0python please provide code and result Create a random 5x5 matrix sampled from the unit interval in variable “A". Compute the inverse of the matrix, and store it in variable "B". Using matrix multiplication, compute the product of the two matrices - make sure you got identity matrix with 1 on the diagonal and 0 elsewhere (up to numerical precision). Plot the matrices as heatmaps with matplotlib imshow function. Use one plot with 3 subplots, add subplot titles ("A", "A-inverse", "I").If a and b are two non-empty numerical row vectors (of different lengths) present in Matlab Workspace, what command would you use to create a new vector, called c, that is a combination of a and b (b elements are appended at the end of a)? c = a + b c = transpose(a,b) c = [a; b] c = [a, b]