Illustrations of variable number of output arguments, MATLAB in Mathematics

Illustrations of Variable number of output arguments:

In the illustrations shown here, the user should actually know the type of the argument in order to establish how many variables to have on the left-hand side of the assignment statement. An error will answer if there are too many variables.

>> [arrtype, r,c] = typesize(4:6)

??? Error using ==> typesize

Too many output arguments.

The function nargout can be called to establish how many output arguments were used to call a function. For illustration, in the function mysize, later, a matrix is passed to the function. The functions behave like a built-in function size in that it returns the number of rows & columns. However, if three variables are used to store the answer of calling this function, then it also returns the total number of elements:

163_Illustrations of Variable number of output arguments.png

>> [r c] = mysize(eye(3))

r =

3

c =

3

>> [r c elem] = mysize(eye(3))

r =

3

c =

3

elem =

9

Note that the nargout does not return the number of output arguments in the function header, but returns the number of output arguments expected from the function (example, the number of arguments in the vector in the left-hand side of the assignment statement whenever calling the function). In a first call to the mysize function, the value of nargout be 2, therefore the function returned only the output arguments row and col. In the second call, as there were three variables on the left of the assignment statement, the value of nargout be 3, therefore the function also returned the total number of elements.

Posted Date: 10/22/2012 1:21:45 AM | Location : United States







Related Discussions:- Illustrations of variable number of output arguments, Assignment Help, Ask Question on Illustrations of variable number of output arguments, Get Answer, Expert's Help, Illustrations of variable number of output arguments Discussions

Write discussion on Illustrations of variable number of output arguments
Your posts are moderated
Related Questions
Functions to create special matrices: The MATLAB also has various functions which create special matrices. For illustration, the zeros function generates a matrix of all zeros

Illustration of Minimum and Maximum Value Both of these functions also return the index of the minimum or maximum value; when there is more than one occurrence, it returns the

Illustration of Variance For illustration, for the vector [4, 6, 1, 5], there are n = 4 values therefore n - 1 is 3. The mean of this data set is also 4. The variance will be

Polar Form: Any complex number z = a + bi can be thought of as a point (a,b) or vector in the complex plane in which the horizontal axis is the real part of z, and the vertica

Give the formula for a rational function that has a hole at x=7 & vertical asmptote at x=-3/2

strvcat function - concatenation: The function strvcat will concatenate it vertically, that means that it will generate a column vector of the strings.   >> strvcat(fir

Error-Checking for Integers: As MATLAB uses the type double by default for all the values, to check to make confirm that the user has entered an integer, the program have to c

Fliplr function: The fliplr function "flips" the matrix from left to right (in another words the left-most column, the first column, become the last column and so on), and the

Script a MATLAB program which meets the following speci cations: The program expects an input of a two-variable real-valued continuous function f : R^2--> R The program is to cal

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