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Three-Dimensional Plots:
The MATLAB has many functions which will display three-dimensional plots. Most of these functions have similar name as corresponding two-dimensional plot function with a 3 at the end. For illustration, the three-dimensional line plot function is known plot3. The other functions involve bar3, pie3, and stem3.
The Vectors presenting x, y, & z coordinates are passed to the plot3 & stem3 functions. Such functions display the points in three-dimensional space.
By clicking on the rotate 3D icon and then in the plot permits the user to rotate the view to see the plot from various angles. Using the grid function also makes it easier to visualize, as shown in figure.
Figure: Three-dimensional plot with a grid.
>> x = 1:5;
>> y = [0 -2 4 11 3];
>> z = 2:2:10;
>> plot3(x,y,z,'k*')
>> grid
Empty Vectors: An empty vector or in another words, a vector which stores no values, can be generated using the empty square brackets: >> evec = [] evec = [] >> lengt
Example of Minimum and Maximum Value For matrices, the functions min and max operate column wise by the default: >> mat = randint(2,4,[1 20]) mat = 9 10 1
5 p2+8p+15, 3 p2-3p-18, 12 p2-p-30
Script a MATLAB program which meets the following speci cations: The program expects an input of a two-variable real-valued continuous function f : R^2--> R The program is to cal
Complex numbers: A complex number is commonly written in the form z = a + bi here a is known as the real part of the number z, b be the imaginary part of z, and i is √-1
User input in the while loop: Here is an illustration of running this script: >> readonenum Enter a positive number: -5 Invalid! Enter a positive number: -2.2
Indexed empty matrix: The Individual elements cannot be eliminated from matrices, as matrices always have the similar number of elements in every row. >> mat = [7 9 8; 4 6
Function fopen - file function: The permission string in the call to the fopen function identifies that the file is opened for writing to it. Just as when reading from a file,
Illustration of a recursive function: illustration is of a recursive function which does not return anything, but simply prints. The below function prtwords receives a sentenc
Find Minimum and Maximum for each row To find the maximum (or minimum) for each row, the dimension of 2 (that is how a MATLAB refers to rows) can be identified as the third arg
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