# question on notation for partial derivatives

• October 27th 2009, 05:28 PM
oblixps
question on notation for partial derivatives
what does it mean when a partial derivative has a prime on it? usually i just see partial derivatives as f and a subscript x but i recently came across f with a subscript x and a prime on the top. just curious, what does that mean?
• October 27th 2009, 05:45 PM
Quote:

Originally Posted by oblixps
what does it mean when a partial derivative has a prime on it? usually i just see partial derivatives as f and a subscript x but i recently came across f with a subscript x and a prime on the top. just curious, what does that mean?

Do you mean like this $f'_x$

?
• October 27th 2009, 10:37 PM
oblixps
Quote:

Do you mean like this $f'_x$
yes, sorry if my description was confusing. can you tell me what $f'_x$ means?