What is the Purpose of tg() in Physics?

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The discussion clarifies that "tg()" is an abbreviation for the tangent function, commonly found in older physics texts. The user expresses surprise at encountering this notation after four years of higher education. Additionally, the conversation notes that "lg()" refers to the Briggs logarithm, highlighting the use of older conventions in mathematical expressions. Overall, the thread emphasizes the importance of understanding these abbreviations in the context of physics. Familiarity with such notations can enhance comprehension of equations in academic settings.
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Dear Physicists,

I've been given an equation tg(psi_1) = et cetera. I do not know the meaning of the tg function, please could could one tell me its formal name, or how it functions? Thank you
 
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It's a fairly common abbreviation for the tangent function, at least in older books.
 
arildno said:
It's a fairly common abbreviation for the tangent function, at least in older books.

Thank you! It's the first time in fours years of higher education that I've seen it!
 
penguindecay said:
Thank you! It's the first time in fours years of higher education that I've seen it!

You're welcome! :smile:

And, to make a pre-emptive strike, lg() is an old convention for the (Briggs') logarithm..:wink:
 

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