Essay OENG1116: Matrix – Resultant Plot – Mathematics Assignment Help

Assignment Task:

(1) This is a Part-1 of the Individual Assignment-1 and is due on Tuesday, 07 April, 2020 (Week-6 ) 23:59pm Melbourne time. Submit electronically. There is NO NEED to submit or resubmit your assignment via Canvas.

(2) Total weighting of the Assignment-1 is 35% (the max TOTAL score in the Course), which includes 20% for this Part-1 of the Assignment. Attempt ALL tasks. Each Question shows its associated points.

(3) You can only assume successful submission, if you (immediately after submission) receive confirmation message from Google. Keep it as a proof.

(4) Email from Google must contain EDIT button. Keep this email, as it enables you to edit your initial submission up to the due date.

(5) This Assignment is employing the most modern Google technology, enabling your mark to be “delivered” to your “doorstep”, via your individual emails, which is different from traditional Canvas method, requiring you to LOG IN into your account and click many buttons to see your result. So, Canvas is not used as the main “marks delivery vehicle”. Saying this, I will still upload your marks to Canvas, but towards the end of the Course.

(6) Important: the multiple-choice tasks may have SEVERAL CORRECT ANSWERS and, if this is the case, in order to earn question points, you need to tick ALL correct answers and, at the same time, do not tick ANY incorrect answer. Partially selected correct answers will result in zero mark for the question..

TASK-1 (Basic matrix operations with MATLAB) You are provided with a given matrix: A = [1 2 3 4 5; 10 20 30 40 50; 100 200 300 400 500]. Select all options (out of commands below), enabling extraction of the matrix FOURTH COLUMN as a COLUMN MATRIX

TASK-2 (“MUST KNOW” commands in MATLAB: “find”) In order to plot function y(x) = x^4 – 7x^3 – 7x^2 + 43x + 42, the “x” and “y” arrays were generated in MATAB, using the following commands, enterd from the Command Window: >> x=[-4:0.1:7]; y = x.^4 – 7*x.^3 – 7*x.^2 + 43*x + 42; Use “find” command, in combination with other relevant commands, to determine the number of elements in array “y”, for which their values are larger than “50” (“more than plus 50”). This number is equal to:

TASK-3 (“MUST KNOW” commands in MATLAB: “interp1”) A “y(t)” function was plotted in MATLAB using the following commands: t=[0:0.01:1]*4*pi; y=sin(t); plot(t,y,’r’); grid on; hold on; xlabel(‘t’); ylabel(‘y’); Then, set of additional commands was used to superimpose interpolated data, with a resultant plot shown below. Which set of additional commands was used to produce the presented plot?