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Function fieldnames - structure functions:
The function fieldnames will return the names of the fields which are contained in the structure variable.
>> pack_fields = fieldnames(package)
pack_fields =
'item_no'
'cost'
'price'
'code'
As the name of the fields is of different lengths, the function fieldnames returns a cell array with the names of the fields.
To refer to the elements the curly braces are used, as pack_fields is a cell array.
For illustration, we can refer to the length of one of the strings as shown below:
>> length(pack_fields{2})
ans =
4
7.13
A matlab function to calculate filter order
Print from the structure: To print from the structure, a disp function will show either the whole structure or a field. >> disp(package) item_no: 123 cost: 19.99
Logical scalar values: The MATLAB also has or and and operators which work element wise for the matrices: These operators will compare any of the two vectors or matric
Variable Scope: The scope of any of variable is the workspace in which it is valid. The workspace generated in the Command Window is known as the base workspace. As we know
Replacement : Replace a row by adding it to (or subtract from it) a multiple of the other row. For a given row ri, this is written as ri - srj → ri Note that when r
Illustration of gauss-jordan: Here's an illustration of performing such substitutions by using MATLAB >> a = [1 3 0; 2 1 3; 4 2 3] a = 1 3 0 2 1 3 4 2
Sorting Vectors of structures: Whenever working with vector of structures, it is very common to sort based on a particular field within the structures. For illustration, recal
Illustration of Set operations: For illustration, given the vectors as shown below: >> v1 = 2:6 v1 = 2 3 4 5 6 >> v2 = 1:2:7 v2 = 1 3 5 7
str2num function - String: The function str2num does the opposite; it takes the string in which a number is stored and converts it to the type double: >> num = str2num('123.
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