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Concept explainers
One very old method of sending secret messages is to hide the message inside another (usually longer) message. A few possible cases are illustrated by the following questions.
a. Assume Loud=' THUNDERSTORM' ,
What is placed in Fate by the command Fate= Loud ( [5, 10, 1 0 , 121);
b. What is in Hidden after the following two MATLAB commands are executed?
C. Assume composer= 'Beethoven' ;
Replace a single letter in composer with a blank and place the result in the variable Root _crop_cooker . The contents of this new variable should be appropriate for the variable name.
d. Assume the following are defined:
What is placed in Msg by the following command?
e. You wish to send the secret message “April first” to a colleague. Conceal this message inside another text string stored in Hide. The string in Hide should be a complete sentence or phrase, not merely gibberish
For your answer, show both the MATLAB statement that creates Hide and the MATLAB command that would be used to extract the message hidden within and place it in Message.
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Chapter 15 Solutions
Thinking Like an Engineer: An Active Learning Approach (4th Edition)
- I wanted to create two spheres that overlap each other in MATLAB. The image has my code and results. I only see one sphere in the results. Why is that? Can you give me the code that will create two overlaying spheres in one plot?arrow_forwardI’m making the graph that you see in the picture but the code that I’m using makes the line with to many curves. Could you make the lines look like the one that you see on the graph. Don’t change the color just make it with a little bit less curves like you see in the picture. Use this code on MATLAB and fix it. % Sample data for Diesel and Petrol cars carPosition = linspace(1, 60, 50); % Assumed positions of cars % Fix the random seed for reproducibility rng(50); % Assumed CO2 emissions for Diesel and Petrol CO2Diesel = 25 + 5*cos(carPosition/60*2*pi) + randn(1, 50)*5; % Random data for Diesel CO2Petrol = 20 + 5*sin(carPosition/60*2*pi) + randn(1, 50)*5; % Random data for Petrol % Fit polynomial curves pDiesel = polyfit(carPosition, CO2Diesel, 3); pPetrol = polyfit(carPosition, CO2Petrol, 3); % Generate points for best fit lines fitDiesel = polyval(pDiesel, carPosition); fitPetrol = polyval(pPetrol, carPosition); % Combined best fit combinedFit = (fitDiesel + fitPetrol) / 2;…arrow_forwardCreate an illustration or diagram of the amusement park ride called THE BUMPER CAR RIDE, then proceed to add labels based on the guidelines provided within the image. The screenshot is the example of the diagram BUT THAT IS A DIAGRAM OF THE GRAVITRON RIDE. I need an illustration DIAGRAM OF THE BUMPER CAR RIDE, do not answer using AI.arrow_forward
- Matlab code: Read images from a folder with the directory using the MATLAB code. Be specific and don't write general answer.arrow_forwardI’m using this code in MATLAB but for some odd reason every time I run it on MATLAB I keep on getting a different graphs. In the picture that shows two different graphs are from the same code, but I need to it to look like the picture that has one graph. Could you please fix it. To make it look like the picture that has one graph? Here is the code: % Sample data for Diesel and Petrol carPosition = linspace(1, 60, 50); % Assumed positions of cars CO2Diesel = 25 + 5*cos(carPosition/60*2*pi) + randn(1, 50)*5; % Random data for Diesel CO2Petrol = 20 + 5*sin(carPosition/60*2*pi) + randn(1, 50)*5; % Random data for Petrol % Fit polynomial curves pDiesel = polyfit(carPosition, CO2Diesel, 3); pPetrol = polyfit(carPosition, CO2Petrol, 3); % Generate points for best fit lines fitDiesel = polyval(pDiesel, carPosition); fitPetrol = polyval(pPetrol, carPosition); % Plotting the data figure; hold on; scatter(carPosition, CO2Diesel, 'o', 'MarkerEdgeColor', [1 0.5 0]); % Diesel data…arrow_forwardThere is a small space between the orange and purple line could you please connect the two lines together also can you please make the purple line shorter and then connect the purple line to the orange line, please take out the box that says “Diesel, petrol, Diesel best fit, petrol best fit”. Also when ever I run this code the graph shows up but there are still errors that comes up could you please fix them when you are running this on MATLAB. Please use this code on MATLAB and fix it. % Sample data for Diesel and Petrol cars carPosition = linspace(1, 60, 50); % Assumed positions of cars % Fix the random seed for reproducibility rng(50); % Assumed CO2 emissions for Diesel and Petrol CO2Diesel = 25 + 5*cos(carPosition/60*2*pi) + randn(1, 50)*5; % Random data for Diesel CO2Petrol = 20 + 5*sin(carPosition/60*2*pi) + randn(1, 50)*5; % Random data for Petrol % Fit polynomial curves pDiesel = polyfit(carPosition, CO2Diesel, 3); pPetrol = polyfit(carPosition, CO2Petrol, 3); % Generate…arrow_forward
- I was going over the equations for the notes in class and I had a thought. Based on the equations in the image, you could get negative propellant mass. So, I coded it in matlab and I got negative mass. How is that possible? I think I used practical values for the velocity and mass ratio and so on. Did I do something wrong?arrow_forward.arrow_forwardHelp solve this USING MATLABarrow_forward
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