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Writing to Files:
There are many lower level functions which can write to files. We will focus on the fprintf function that can be used to write a file and also to append to a file.
To write one line at same time in a file, the fprintf function is used. AS similar to the other low-level functions, the file should be opened first for writing and must be closed once the writing has been done. We have, obviously, been using the fprintf to write to the screen. It is the the default output device, therefore if a file identifier is not identified; the output goes to the screen; or else, it goes to the identified file. The default file identifier number is 1 for the screen. The common form is as shown below:
fprintf(fid, 'format', variable(s));
Writing variables to a File: The save command is used to write variables to a file, or to append the variables to a MAT-file. By the default, save function writes to a MAT-fil
Plot Functions: Faraway, we have plotted to generate two-dimensional plots and bar to generate bar charts. We have seen how to clear the Figure Window by using clf, and how to
Give the formula for a rational function that has a hole at x=7 & vertical asmptote at x=-3/2
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
Built-in function for Differentiation: The MATLAB has a built-in function, diff that returns the differences between consecutive elements in a vector. For illustration, >>
Dimensions - matrix: The size and length functions in the MATLAB are used to find array dimensions. Length function returns the number of elements in the vector. The size func
Fliplr function: The fliplr function "flips" the matrix from left to right (in another words the left-most column, the first column, become the last column and so on), and the
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
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
Strcat function - Concatenation : The strcat function, though, will eliminate the trailing blanks from strings before concatenating. Note that in these illustrations, the trail
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