Special Relativity: Which notation to use

AI Thread Summary
The discussion centers on the confusion regarding the use of "primed" versus "subscript" notation in special relativity equations. The user initially questions whether both notations represent the same concepts in the context of length measurements. They clarify that in the first equation, L_0 denotes proper length while L represents length in a moving frame, whereas in the second equation, L is proper length and L' is length in the moving frame. Ultimately, the user resolves their confusion and understands the distinctions between the notations. The conversation highlights the importance of consistent notation in physics to avoid misunderstandings.
Matty R
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Hello

This isn't a specific problem-based question. I'm just a little confused over the notation I should be using. Also, I'm sorry if I've put this in the wrong section.

I'm on an Undergrad Physics course, and in the Relativity part that we're doing, we use two different kinds of notation. Is there any difference between "primed" and "subscript"?

L = \frac{L_0}{\gamma}


L = \frac{L'}{\gamma}

As far as I can tell, both equations represent the same thing.

I'd rather use a single notation, so if there isn't a difference, is there a generally preferred one?

Thanks
 
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Never mind. I worked out the difference.

First equation:
L_{0} = Proper Length
L = Length in frame moving relative to the rest frame.

Second equation:
L = Proper Length
L' = Length in frame moving relative to the rest frame.
 
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