how to know constant value in matlab

In MATLAB, there are several built-in constants that you can use in your code. Here are some examples:

1. pi: Value of pi (~3.141592653589793)
2. inf: Positive infinity
3. NaN: Not-a-Number (used to represent undefined or non-existent values)
4. true and false: Logical true and false values

To use these constants in your code, you can simply assign them to a variable or use them directly in calculations. For example:

main.m
radius = 5;
circumference = 2 * pi * radius;
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In the above code, pi is a constant value representing the mathematical constant pi. It is multiplied by the radius variable to calculate the circumference of a circle.

You can also create your own constants by using the constant keyword in MATLAB. For example:

main.m
constant speedOfLight = 299792458; % meters per second
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In the above code, a constant named speedOfLight is created with a value of 299792458. This constant can be used throughout your code, and its value cannot be changed.

By using these built-in constants or creating your own, you can easily work with constant values in MATLAB.