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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('123.456')
num =
123.4560
When there is a string in which there are numbers split by blanks, then the str2num function will convert this to the vector of numbers (of the default type double).
For illustration,
>> mystr = '66 2 111';
>> numvec = str2num(mystr)
numvec =
66 2 111
>> sum(numvec)
ans =
179
Changing Case: The MATLAB has two functions which convert strings to all uppercase letters, or all lowercase, known as the upper and lower. >> mystring = 'AbCDEfgh';
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
#question.
analyzing traffic; determine motion of flow; calculate tracklets; detect abnormalities;
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