Illustration of logical built-in functions, MATLAB in Mathematics

Assignment Help:

Illustration of logical built-in functions:

The function find returns the indices of a vector which meet certain criteria. For illustration, to find all the elements in a vector which are greater than 5:

>> vec = [5 3 6 7 2]

vec =

5 3 6 7 2

>> find(vec > 5)

ans =

3 4

The function is also equal and is useful in comparing the vectors. In MATLAB, using the equality operator with arrays will return 1 or 0 for every element; the all function could then be used on the resulting array to establish whether all elements were equal or not. The built-in function is equal and it also accomplishes this:

>> vec1 = [1 3 -4 2 99];

>> vec2 = [1 2 -4 3 99];

>> vec1 == vec2

ans =

1 0 1 0 1

>> all(vec1 == vec2)

ans =

>> isequal(vec1,vec2)

ans =

Related Discussions:- Illustration of logical built-in functions

Built-in functions for complex numbers, Built-in functions for Complex numb...

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).

Indexed empty matrix, Indexed empty matrix: The Individual elements ca...

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

Sprintf function, sprintf function: The sprintf function works precise...

sprintf function: The sprintf function works precisely like the fprintf function, but rather than printing it generates a string. Here are some illustrations in which the outp

Illustration of standard deviation, Illustration of Standard Deviation ...

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.

Nested if-else statements, Nested IF-ELSE statements: The if-else stat...

Nested IF-ELSE statements: The if-else statement is used to select between the two statements. In order to select from more than two statements, the if-else statements can als

Illustration of logical vectors, Illustration of Logical vectors: Call...

Illustration of Logical vectors: Calling the function appears to return similar vector as simply vec > 5, and summing the result still works to determine how many elements wer

Illustration of nested function, Illustration of nested function: The ...

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

Illustration of writing to files, Illustration of Writing to files: He...

Illustration of Writing to files: Here is the other illustration in which a matrix is written to a file. At First, an arbitrary 2 × 4 matrix is generated, and then it is writt

Illustration of labels and prompts, Illustration of Labels and prompts: ...

Illustration of Labels and prompts: The program below prompts the user for endpoints (x1, y1) and (x2, y2) of a line segment, and computes the midpoint of the line segment, th

Illustration of spreadsheet files, Illustration of Spreadsheet Files: ...

Illustration of Spreadsheet Files: This reads the numbers in a double vector variable nums and the text in a cell array txt (the xlsread function forever returns the numbers f

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages