Meeting 03 MATLAB 3D Graphics - Ijaz.pptx

Meeting 03 MATLAB 3D Graphics - Ijaz.pptx - Texas A&M...

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Texas A&M University ENGR 112 – Spring 2018 Foundations of Engineering II Meeting 03 MATLAB Graphics
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RAT – Meeting 03 Log on to eCampus. Go to Continual Assessment >> Readiness Assessment Tests Open ‘RAT – Meeting 03’. This is an individual test. Password is “ teamproject ”, with all lowercase letters. Answer all questions and submit.
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Agenda RAT Introduction to Engineering Innovation Center by Mr. James Wilson Announcements Review from ENGR 111 3D Plots In-class Activities CFU – will be available at 9:30 A.M.
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Announcements Draft description of team project is posted Form 6 teams Team size shall be 8 students, except for Teams 3 and 6 which will have 7 students each. Enroll yourself to a team on eCampus First Team Project Report due on February 2
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Learning Objectives Review from ENGR 111 Export/import data to/from .xls or .mat files for plotting. Use MATLAB to make a simple 2-D plot. Add axis labels, a title, gridlines, and a legend to a plot in MATLAB. Create multiple plots on one set of axes in MATLAB with a proper legend. Use the subplot command to generate multiple plots in a single figure. New for ENGR 112 Make 3D line plots using the plot3 function. Make 3D surface plots using the mesh , surf and other functions. Use the meshgrid function to make correct input matrices for the 3D plotting functions. Change the viewing angle and location of a plot using the view
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Array Arithmetic Review Create arrays to use as values of the independent variable: x = 0:200; theta = 0:pi/10:2*pi; y = linspace(0,5,50); z = logspace(0,5,25); Use array arithmetic to create values of the dependent variable(s): u = x.^2 – sin(x); v = 2*theta.^3 .* sin(theta); w = exp(y)./(3*y);
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Multiple Plots Method 1: Using the hold command figure(1) theta=0:pi/100:2*pi; y=cos(theta); z=sin(theta); plot(theta,y,’b’) hold on plot(theta,z,’r’) hold off xlabel(‘\theta’) ylabel(‘y and z’) title(‘Plot of sin and cos’) 0 1 2 3 4 5 6 7 -1 -0.8 -0.6 -0.4 -0.2 0 0.2 0.4 0.6 0.8 1 Plot of sin and cos y and z
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Multiple Plots
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