Sunday, October 7, 2012

Week Three Progress (SEM 2)

I continue mastering the MATLAB:) during this week as well . In this week I focused on the commands of plotting 2D graph and the basic commands of plotting 3D graph


  • Firstly, I learnt how to make 2D plot by using the command 
    • plot(independent variable, dependent variable, ' the property')



  • Then I went through the properties of plotting (colour and line tribe); there are many properties for graph drawing such 'k' for black colour line and '*' for drawing star line.


Example



The Result






  • Then I learnt how to make the graph grid --> by adding 'grid' command after the 'plot' command

  • Then I went through and I understood the 'hold on, hold off and close all' commands
    • hold on & hold off --> to show the last figure or not
    • close off --> to close any figure was opened



  • After that I learnt about 'subplot' command and the different between 'subplot' and 'plotsubplot(number of rows, number of column, the number of the matrix which occupy the figure)


Example for subplot




The Result






  • Then I learnt how to name or label the graph Axis's and title the graph
    • For labeling X Axis we use the command --> xlabel('The of the axis')
    • For labeling Y Axis we use the command --> xlabel('The of the axis')
    • For titling the graph we use the command --> title('The Title of the graph')


Example for Label and Title the Graph



The Result





  • Actually, I went through many related to 2D plotting and I won't be able to mention them all, but I can tell before I ended this post; one the most significant which I learnt during this week that I learnt the basic command of plotting 3D graph
    • The most important two commands in plotting 3D are 'meshgrid' and 'mesh' (which work as plot command in 2D)


Here an Example for 3D Plotting




 The Result



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