String to Int in MATLAB

In MATLAB, you can convert a string to an integer using the str2num() or str2double() functions. The basic syntax for str2num() is:

num = str2num(str);

where str is the string you want to convert and num is the resulting integer.

Here's an example:

str = '123';
num = str2num(str);
disp(num);

Output:

123

You can also use the str2double() function to convert a string to a double-precision floating-point number:

str = '123.456';
num = str2double(str);
disp(num);

Output:

123.4560

Note that str2num() and str2double() will both return NaN (not a number) if the input string cannot be converted to a number, for example if the string contains non-numeric characters:

str = 'abc123';
num = str2num(str);
disp(num);

Output:

NaN