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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!
Illustration of Binary search: An illustration to search for the key of 91 in the vector is as shown below: The table below shows what will happen in each iteration of
Sorting Strings: For the matrix of strings, the sort function works exactly as formerly for numbers. For illustration, >> words = char('Hi', 'Hello', 'Howdy', 'Goodbye', '
fscanf function - file function: The fscanf reads matrix variable mat columnwise from the file specified by fid. The 'format' involves conversion characters much similar to th
Properties of the text box - graphics objects: By using get will show properties of the text box, the illustration is as shown below: >> get(thand) BackgroundColor
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
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];
Example of customizing plots: As the other illustration of customizing plots, the pieces of a pie chart can be "exploded" from the rest. In this situation, the two vectors are
Example of Mode When no value appears more often than any other, the smallest value in the vector will be the mode of the vector. >> shortx = [2 5 1 4]; >> mode(shortx
Indexing: The Indexing is an alternate to sort a vector. With indexing, the vector is left in its original order. An index vector is used to point values in the original vecto
Areacirc function: The areacirc function can be called from the Command Window as shown here, or from a script. Here is a script which will prompt the user for the radius of o
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