Using Functions with the Vectors and Matrices:

As MATLAB is written to work with the vectors and matrices, the whole vector or matrix can be passed as an argument to the function. MATLAB will compute the function on every element, and return as a result the vector or matrix with similar dimensions as the original. For illustration, we could pass the vector below, vec, to the abs function in order to get the absolute value of each and every element.

>> vec = -3:4

vec =

-3    -2    -1    0    1    2    3    4

>> abs(vec)

ans =

 3    2    1    0    1    2    3    4

The original vector vec has 8 elements, and as the abs function is computed for every element, the resulting vector also has 8 elements.

This would also be the case for matrices:

>> mat = randint(2,3,[-5,5])

mat =

-5 -1  0

 3  5 -1

>> abs(mat)

ans =

5 1 0

3 5 1

Posted Date: 10/18/2012 4:33:15 AM | Location : United States

Ask an Expert

Related Discussions:- Using functions with the vectors and matrices, Assignment Help, Ask Question on Using functions with the vectors and matrices, Get Answer, Expert's Help, Using functions with the vectors and matrices Discussions

Write discussion on Using functions with the vectors and matrices
Your posts are moderated

Write your message here..

Related Questions

Illustration of a recursive function, Illustration of a recursive function:... Illustration of a recursive function: illustration is of a recursive function which does not return anything, but simply prints. The below function prtwords receives a sentenc

Example of recursive functions, Example of Recursive functions: This d... Example of Recursive functions: This definition is recursive as a factorial is defined in terms of the other factorial. There are two parts to any recursive definition: the co

Creating customized strings, Creating Customized strings: There are ma... Creating Customized strings: There are many built-in functions which create customized strings, including blanks, char, and sprintf. We know that the char function can be u

Logical vectors, Logical Vectors: The relational operators can also be... 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 eleme

Example of minimum and maximum value, Example of Minimum and Maximum Value ... 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

Function isreal - complex numbers, Function isreal - complex numbers: ... Function isreal - complex numbers: The function isreal returns 1 for logical true when there is no imaginary part of the argument, or 0 for false when the argument does have a

Fprintf function - file function, fprintf function - File function: Th... fprintf function - File function: The fprintf function really returns the number of bytes which was written to the file, therefore if you do not want to see that number, suppr

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

Using functions with the vectors and matrices, Using Functions with the Vec... Using Functions with the Vectors and Matrices: As MATLAB is written to work with the vectors and matrices, the whole vector or matrix can be passed as an argument to the funct

Histogram - plot functions, Histogram: The histogram is a particular t... Histogram: The histogram is a particular type of bar chart which shows the frequency of occurrence of the values within a vector. The Histograms use what are known as bins to