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Working of Editor and debugger:
Editor/Debugger, or commands can be typed from Command Window. For illustration, the dbstop command below will set a breakpoint in the fifth line of this function (that is the action of the if clause), that allows us to type the variable names and/or expressions to examine their values at that point in the execution. The dbcont function can be used to carry on the execution, and dbquit is used to quit the debug mode.
Note that the prompt becomes K>> in the debug mode.
>> dbstop testifelse 5
>> testifelse(-2)
5 disp('In middle of range')
K>> x
x =
-2
K>> 3 < x
ans =
0
K>> 3 < x < 6
1
K>> dbcont
In middle of range
end
>>
By typing the expressions 3 < x and then 3 < x < 6, we can conclude that the expression 3 < x will return either 0 or 1. Both 0 & 1 are less than 6, therefore the expression will always be true, despite of the value of x!
Mode The mode of a data set is the value which appears most often. The built-in function in a MATLAB for this is known as the mode. >> x = [9 10 10 9 8 7 3 10 9 8 5 10];
Illustration of Nested loops: Running the script shows the output: >> printstars ***** ***** ***** The variable rows identifies the number of rows to print, and
Example of Median For the vector [1 4 5 9 12 33], the median is the average of the 5 & 9 in the middle: >> median([1 4 5 9 12 33]) ans = 7
Illustration of reading from files: For illustration, suppose that there is a data file 'subjexp.dat' that has on each line a number followed by thecharacter code. The type fu
Working of Editor and debugger: Editor/Debugger, or commands can be typed from Command Window. For illustration, the dbstop command below will set a breakpoint in the fifth li
Example of Nested functions: For illustration, the function below computes and returns the volume of a cube. Three arguments are then passed to it, for the width and length of
Example of sorting strings: To sort a cell array of strings, also the sort function is used. The illustration is as follows, >> engcellnames = {'Chemical','Mechanical',.
Illustration of Median When the vector is not in sorted order to start with, the median function will still return the right answer (it will sort the vector automatically). For
Types of errors: There are some various kinds of errors which can occur in a program, that fall into the categories of run-time errors, syntax errors, and logical errors. T
Advanced File Input and Output: In that section, we saw how to read the values entered by user using the input as well as the output functions disp and fprintf, that shows inf
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