5. DOT OPERATIONS Let matrix \'a\' and \'b\' be two 1x3 defined matrices. Choose

Question

5. DOT OPERATIONS Let matrix 'a' and 'b' be two 1x3 defined matrices. Choose the correct line of code to multiply together the elements of matix 'a' and the elements of matrix ?b? A. a*b B. a.b C. a**b D. a.*b E. b.*a 6. SAVING&LOADING; Choose the correct command to save the matrix 'D_to_R' to an external data file called degrees.dat. A. save degrees.dat D to_R -ascii B. save degrees.dat D_to_R C. save D_to_R degrees.dat -ascii D. save -ascii D_to_R degrees.dat E. save degrees D_to_R 7. Write a one line command to erase the variable m from your Workspace window. 8. SAVING&LOADING; Choose the correct one line command to load degrees.dat data into your workspace. A. load degrees B. load degrees.dat -ascii C. load -ascii degrees.dat D. load degrees -ascii Chapter 4 Question List Spring 2015 1. Use the following matrices to create a matrix d from the 3rd column of matrix a . 2. Create a column vector e with the first element equal to a (1,3), the second element equal to c(1,2) and the third element equal to b(2,1). 3 Create a matrix of ones the same size as matrix b. You must use the size function.

Explanation / Answer

1) B
2) A
3) C
5) D
6) A
7) clear 'm'
8) B

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