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Logical Vectors:
The relational operators can also be used with the vectors and matrices. For illustration, let's say that there is a vector, and we want to compare each element in the vector to 5 to determine whether it is greater than 5 or not. The outcome would be a vector (with similar length as the original) with logical true or false values. Suppose a variable vec which is as shown here.
>> vec = [5 9 3 4 6 11];
In MATLAB, this can be automatically accomplished by simply using the relational operator >.
>> isg = vec > 5
isg =
0 1 0 0 1 1
Note that this generates a vector consisting of all the logical true or false values. Though this is a vector of ones and zeros, and numerical operations can be completed on the vector isg, its type is logical instead of double.
Example of Logical built-in functions: For equivalent to all the function, we should make sure that the entire elements in the vector are logically true. The one way of doing
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Illustration of Empty vectors: The Empty vectors can also be used to delete elements from the arrays. For illustration, to remove the third element from array, an empty vector
m=2/3 b=4/5
Illustration of nested function: The output arguments are distinct from variables. The scope of an output argument is merely the nested function; and it cannot be used in the
Example of Symbolic Expression When there is more than one variable, the MATLAB selects which to solve for. In the illustration below, the equation ax 2 + bx = 0 is solved. Th
Built-in functions for Complex numbers: We know that in MATLAB both i and j are built-in functions which return √-1 (therefore, they can be thought of as built-in constants).
Illustration of Standard Deviation The less spread out the numbers are, therefore smaller the standard deviation will be, as it is a way of determining the spread of the data.
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